DATUM ™ 00 20 Dual Channel Meter and Manometer Operating Manual 1
Contents INTRODUCTION ........................................................................................... 3 CONNECTING A TRANSDUCER TO THE DATUM 2000™ ........................ 4 TRANSMITTERS ( 2 WIRE DEVICES) ..................................................... 4 TRANSDUCERS ( 3 WIRE OR 3 TERMINAL DEVICES) ......................... 4 TRANSDUCERS ( 4 WIRE OR 4 TERMINAL DEVICES) ......................... 5 OPERATING NOTES ...............................................................................
DATUM 2000™ INTRODUCTION Thank you for purchasing a Setra DATUM 2000™ meter or manometer. Setra’s DATUM 2000™ is a compact dual channel meter with a 4 1/2 digit LED display designed to mate with one or two transducers or transmitters with a cable connection. The DATUM 2000™ manometer is a single unit which combines a DATUM 2000™ meter with a Setra transducer.
CONNECTING A TRANSDUCER TO THE DATUM 2000™ Note: If you purchased your DATUM 2000™ factory calibrated with a Setra pressure transducer or transmitter, a 10 foot cable/connector assembly has been provided. Therefore, this section may not be applicable. Go to page 7. The DATUM 2000™ has two groups of input terminals, one for each channel. Figure B (page 6) shows the terminal block connector on the back of the DATUM 2000™ and describes each position of the connector.
TRANSDUCERS ( 4 WIRE OR 4 TERMINAL DEVICES) Connect the + excitation to pin 5 (CH2: pin 11) to supply 24 volts to the transducer. IF YOUR TRANSDUCER REQUIRES 12 VOLT EXCITATION, CONNECT THE + EXCITATION TO PIN 10 (CH2: PIN 10). Connect the - excitation to Ground, pin 9 (CH2: pin 15). Connect the + output to +IN, pin 6* (CH2: pin 12). Connect the - output to -IN, pin 7* (CH2: pin 13).
Figure B Terminal Block Connector 1 2 3 4 5 6 7 8 9 10 111213 14 15 Alarm Signals Channel 1 Inputs/Excitations Channel 2 Inputs/Excitations Setra Transducer* Pin Description 1 . Ground 2 . HiALArm 3 . Lo ALArm 4 . Ch.1/Ch.2 5 . +24Voltsexcitation White Red 6 . Ch.1+In Yellow Green 7 . Ch.1-In Brown White 8 . Ch.1Currentinput 9 . Ground 10. +12Voltsexcitation(optional) Caution:Donot common toPin5orPin11(+24Vexc.) White Red 11.
OPERATING NOTES OvEr AND UndEr MESSAGES In addition to displaying the numeric pressure reading, the DATUM 2000™ may also display "UndEr" and OvEr". If the pressure reading exceeds +31999 (disregard decimal point), the display will not show the input pressure, instead it will display "OvEr". If the pressure reading is less than -9999 (disregard decimal point), the display will not show the input pressure, instead it will display "UndEr".
USER SETUPS The menu tree below represents the meter program structure. To enter the menu and select a channel, press and hold the SCAN/adj and HOLD/mode keys for 8 seconds, then release; the display will alternate between “cal” and “noYes” for ten seconds.* To specify “yes” and select “CH1”, press and hold the HOLD/mode key until “CH1” displays. To specify “no”, press and hold the SCAN/adj key. The display will return to normal operation.
SET “OFFSET” (please read before attempting procedure) Note: The channel must be calibrated before the offset is adjusted. The ”OFFSET” command allows you to adjust the reading relative to a known value. To set the ”OFFSET” use the following procedure: Step 1. Press and hold the SCAN/adj and HOLD/mode keys for 8 seconds, then release; the display will alternate between “cal” and “noYes” for ten seconds. 0.00 SCAN adj HOLD mode CAL Step 2.
Step 5. Press the HOLD/mode key to display the number “0”. Note: The decimal point that was set during calibration (CAL_U, CAL_C) will be displayed. OFF57 SCAN adj HOLD mode 0. Step 6. Set the value you wish the meter to display at the presently applied pressure. Press the SCAN/adj key to move the numbers up (+). 0. SCAN adj HOLD mode 25. Press the HOLD/mode key to move the numbers down (-). 0. SCAN adj HOLD mode –25.
HI /LO ALARM SETPOINTS (please read before attempting procedure) Note: The channel must be calibrated before the alarm points are set. The “ALAr” command allows you to set high and low pressure alarm points. The HI ALARM or LO ALARM indicator light is lit if the applied pressure exceeds the set values. The alarm output signals are available at the terminal strip. To set the Hi ALARM and Lo ALARM, use the following procedure: Step 1.
Step 5. Set the LO ALARM Point. Note: The decimal point that was set during calibration (CAL_U, CAL_C) will be displayed. Press the SCAN/adj key to move the numbers up (+). 0. SCAN adj HOLD mode 25. Press the HOLD/mode key to move the numbers down (-). 0. SCAN adj HOLD mode –25. When the desired number is reached, press the SCAN/adj and HOLD/mode keys at the same time. The number will flash repeatedly. Then, press the SCAN/adj key to readjust it or the HOLD/mode key to accept it. Step 6.
INSTALLATION OF PRESSURE FITTINGS FOR THE MANOMETER Your transducer is designed for most accurate operation when subjected to pressures within the designated pressure range. Refer to catalog bulletin specifications for proof pressure limits. Subjection to excessive pressure voids the warranty. DO NOT OVERPRESSURE. CAUTION: DO NOT SUBMERGE IN LIQUIDS, USE IN AMBIENT CONDITIONS CORROSIVE TO ANODIZED ALUMINUM, SUBJECT TO SPRAY OR DRIPPING, OR USE IN A HIGH VIBRATION ENVIRONMENT.
CALIBRATING THE DATUM 2000™. Note: If on power up, the Datum 2000™ display alternates between "cal" and "no Yes", it has not been calibrated at the factory. If the Datum 2000™ (Channel 1 or 2) displays numbers on power up, one or both channels have been calibrated at the factory. Always allow the DATUM 2000™ and the transducers, transmitters, or reference voltage supplies to warm-up 10 minutes before performing a calibration.
CALIBRATING THE DATUM 2000™ USING AN EXTERNAL REFERENCE VOLTAGE: Connect the external reference to the meter to simulate the transducer or transmitter using the connection instructions on pages 4 - 6. Then, follow the calibration instructions on page 18. During calibration, short -IN to Ground, pin 7 and pin 9 (CH2: pin 13 and pin 15). Be sure to set the minimum voltage of the calibrator to the same value as the minimum output voltage of the transducer.
PRESSURE (@ 0) = 200 x 0 + 0 = 0 PRESSURE (@ REF) = 200 x 2.4995 + 0 = 499.9 2nd example: A 20 psi transducer has an offset of .1 volts and will have an output of 5.1 volts for a 20 PSI pressure. The DATUM 2000™ has a 2.4993 reference voltage. SLOPE = 20 – 0 ———— = 4 5.1 – .1 OFFSET = 0 – 4 x .1 = –.4 PRESSURE (@0) = 4 x 0 – .4 = –.4 PRESSURE (@ REF) = 4 x 2.4993 – .4 = 9.597 3rd example: A bidirectional transducer has +/- 2.5 volt output for +/- 14.70 reading.
For the first pressure point connect the "mA" to gound, pin 8 to pin 9 (CH2: pin 14 to pin 15). Enter the pressure that corresponds to zero mA input (since most transmitters are 4 to 20 mA, 0 mA will have a negative value).
CALIBRATING VOLTAGE INPUT AND CURRENT INPUT (please read before attempting procedure) CAL_U and CAL_C commands allow you to calibrate the DATUM 2000™ by entering two data points. (Calculate the pressure for the 2 calibration points before beginning this procedure.) The DATUM 2000™ will determine the conversion factor and display the applied pressure in the desired engineering units. The maximum read-out is +31999 to -9999.
Step 4. Press the SCAN/adj key to display “OFFST”. ALAr SCAN adj HOLD mode OFF57 Step 5. To calibrate voltage in (transducer), press the SCAN/adj key to display “CAL U”. (If calibrating for voltage input, proceed to Step 7, if not, proceed to Step 6 to calibrate for current input.) OFF57 SCAN adj HOLD mode CAL_U Step 6. To calibrate current in (transmitter), press the SCAN/adj key again to display “CAL_C”, then proceed to Step 7. CAL_U SCAN adj HOLD mode CAL_C Step 7.
Step 7b. Press the HOLD/mode key to accept the decimal point and the meter will display the decimal point with zeroes. S.E7dP SCAN adj HOLD mode 0.000 Step 8. Enter a calibration data point. (Enter a number between +31999 and -9999.) Note: The pressure or voltage/current must be applied to the appropriate channel before entering this data point. Caution: Do not try to calibrate Channel One of the DATUM 2000™ Manometer with a voltage input, this will damage the unit and void the warranty.
Step 9. Repeat the same procedure as in Step 8 to enter the second calibration data point. (Enter a number between +31999 and -9999.) After the second calibration data point has been accepted, the meter will display “bUSY” for 10 seconds and then return to normal operating mode and immediately begin reporting.
SETRA DATUM 2000™ RS232 SERIAL OPTION INTERFACE INSTRUCTIONS The serial option for the Setra DATUM 2000™ has a 9 pin d-sub connector for connecting the serial interface.
2 32H Set the DATUM 2000™ to channel two and lock the meter so only channel two is displayed. It then transmits one reading for channel two. Channel two must be calibrated. S 53H Force the DATUM 2000™ to scan all active channels. This has no effect for a DATUM 2000™ with only one channel calibrated. V 56H Verify communication with the DATUM 2000™ Serial Option. The DATUM 2000™ will respond "SETRA DATUM 2000".
CHANGING THE BAUD RATE AND PARITY The baud rate and parity of the DATUM 2000™ Serial Option can be set to the following values: BAUD: 300 600 1200 2400 4800 9600 PARITY: NONE ODD EVEN COMMAND 3 6 1 2 4 9 ASCII 33H 36H 31H 32H 34H 39H N O E 4EH 4FH 45H To change the baud or parity, transmit a P, ASCII 50H, and the command number or letter from the table above.
DATUM 2000™ Manometer Specifications Type of Pressure Measurement w/Models 204/204D w/Model 239 w/Model 270 Gage Absolute Vacuum Differential Differential Gage Gage Absolute Barometric 0 to 25, 50, 100, 250, 500,1000 psig 0 to 25, 50, 100, 250, 500, 1000 psia 0 to 25, 50, 100 psid 0 to 14.7 psiv 0 to ±10, ±25, ±50, ±100 psid 0to0.5,1.0,2.5,5, 15, 30 inch WC 0 to ±0.25, ±.5, ±1.0, ±2.5, ±7.5, ±15 inch WC 0 to 5, 10 psid 0 to ±2.
DATUM 2000™ Meter and Manometer Specifications Display Type Color HeightofDigits Maximum Readout Reading Rate Overload Signal (over range reading) Underload Signal (under range reading) PolaritySign Brightness Description Light emitting diode Red 0.56 inch - 9999 to + 31999 2 to 3 times per second depending on input voltage OVEr UndEr Negative only Constant Physical Operating Temperature Storage Temperature Width Height Meter Manometer Depth (incl.
PANEL MOUNT INSTRUCTIONS 1. Slide the panel mount tab with screw into slot on the side of the meter as shown.
2. Slide the screw down until it contacts the panel. Now tighten the screw against the panel. Note: You can press against the top of the screw with your thumb to maintain the proper orientation as shown. Note: You may need to bend the panel mount tabs to their new position after they are used.
"FCC WARNING" Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
RETURN INSTRUCTIONS Please contact Setra (800-257-3872 or 978-263-1400) before returning unit for repair to review information relative to your application. When returning a product to Setra, the material should be carefully packaged and shipped prepaid to: Setra Systems, Inc. 159 Swanson Road Boxborough, MA 01719Dat Attn: Repair Department To assure prompt handling, please supply the following information and include it inside the package of returned material: 1. 2. 3. 4.
