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Basic Keypad Operations 1 2 EZ-Check™ Switch SOURCE mode: Slide the switch to select from Hi and low range preset values and the mid ranger (Dial) is selectable. Dial the mid range value and it will store the value with-in 5 seconds automatically. READ mode: Slide the switch to recall minimum and maximum readings. Press the EZ-Dial™ Knob to clear the stored values. SOURCE/OFF/READ Switch Slide the SOURCE/OFF/READ Switch to SOURCE to output a mA signal and to do 2 - wire transmitter simulation.
EZ-Check™ Switch The EZ-Check™ switch has three positions -- high, dial, and low. Its position is shown at the left edge of the display with “HI” and “LO” indicators. Neither indicator indicates the middle position. Use of the EZ-Check™ switch depends on mode. Source Modes: Slide the EZ-Check™ switch to the HI and LO positions to recall the preset settings (Hi=20.00mA & Lo=4.00mA). Hint: For faster calibrations, the position of the switch can be felt.
Power and Measure Transmitter Mode Receiver Transmitter Input + IN - (Sensor) (Process Signal) (Simulated Input) REF +OUT- Typical 2-Wire Transmitter CL531 CL531 Pocket-Mate mA LOOP CALIBRATOR Power Supply 0 to 60 VDC The CL531 supplies 15Volts or 24 Volts to the transmitter and displays the output in mA or % on the CL531 display. In read mode press the EZ-Dial™ Knob twice to get into the feature options. Then press the EZ-Dial™ Knob to select mA PWR - M.
Specifications General Specifications: (Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration) Operating Temperature Range -20 to 60 °C (-5 to 140 °F) Storage Temperature Range -30 to 60 °C (-22 to 140 °F) Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing 10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing Battery 2 AA Alkaline Miscellaneous Low battery indication with nominal 1 hour of operation left Over-voltage protection to
CL531 Field Calibration Procedure 1. Precision Current Meter with accuracy of ±0.025% at 20mA. 2. Precision Current Source with accuracy of ±0.025% at 20mA Place in fresh batteries and allow one hour for the CL531 to stabilize to the ambient temperature. Remove the battery cover and the Phillips head screws. While holding the CL531 face up in one hand, carefully separate the top and bottom of the housing.
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WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 37 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal three (3) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation.
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