Product specifications

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DIFFERENTIAL PRESSURE
44
Model SRCM
Room Pressure and Condition Monitor
DIMENSIONS
cm
in.
18.92
7.45
14.84
5.84
0.95
0.38
1.49
0.59
7.03
2.77
13.15
5.18
5.08
2.00

ANALOG (ANL) OUTPUT
COM COM
mA Current Output (4-20 mA)
Vdc Voltage Output (0-5 Vdc, 0-10 Vdc)
INPUTS (wired to door N.O. contact)
COM COM Door
DI Digital Input
COM COM Analog Input2
IN2 Analog Input2 (0-5, 0-10Vdc)
+15 15 Vdc
COM COM Analog Input1
IN1 Analog Input1 (0-5, 0-10Vdc)
+15 15 Vdc
Earth Ground
L1 24 Vac
L2 24 Vac
HIGH or room pressure tubing
contacts here
LOW or reference pressure tubing
connects here
POWER
RELAY
COM COM
+15 +15 Vdc
NO Normally Open
RC Relay COM
NC Normally Closed
COM
B (+)
A (-)
GND
REAR VIEW
ROOM PRESSURE MONITORS
SPECIFICATIONS
Performance Data Environmental Data Electrical Data (Voltage)
Code F Code H
Operating
3
Temperature
°F (°C)
32 to + 120 (0 to +50) Circuit 3-Wire (Exc, Out, Com),
Accuracy RSS
1
(at constant temp) ±0.25% FS ±0.5%
Storage Temperature °F (°C) -20 to +160 (-30 to +70) Output
4
0 to 5 VDC, 0 to 10 VDC
Non-Linearity (BFSL based) ±0.24% ±0.49%
Operating Humidity 5 to 95% RH (non-condensing) Excitation 18-32 VAC, 50-60 HZ
Hysteresis ±0.05% ±0.05%
Physical Description
Power Consumption 10 W max., 3 W typ.
Non-Repeatability ±0.05% ±0.05%
Case Fire Retardant Plastic UL94 V-0 Alarm Output SPDT Relay: 0.6A @ 120 VAC, 2A @ 30 VDC
Zero/Span Tolerance ±0.05% FS ±0.05% FS
Dimensions 5.84”H x 7.45”W x 0.38”D (14.84 x 18.92 x 0.95 cm)
Electrical Data (Current)
Pressure Media
Electrical Connection Removable Terminal Block Circuit 2-Wire
Air or Non-Conductive, Non-Explosive Gases.
Pressure Fittings Barbed Fittings for 1/4” O.D. Tubing Output 4 to 20 mA
Certications
Weight (approx.) 1 lb. 3.2 ounces (554 grams) External Load 0 to 510 ohms
CE
Electro-Magnetic Compatibility
Directive 2004/108/EC
Low-Voltage Directive 2006/95/EC
RoHS Directive 2011/65/EC
Mounting Mounts to a triple gang double-deep electrical box Excitation 18-32 VAC
Communications Option
Thermal Eects
2
CSA
CAN/CSA - C22.2 No. 61010-1-04
ANSI/UL 61010-1, 2nd Edition
BACnet® MS/TP ASC Compensated Range °F (°C) ±0.03% FSI (±0.05% FS)
1
RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
2
Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
3
Operating Temperature limits of the electronics only.
4
Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
Specications subject to change without notice.
Display Overpressure ±1 PSI (15” W.C. for ≤ 0.10” W.C. F.S.)
LCD 4.3” TFT, 480 x 272, Dimmable