Setra System SRPM - Manual (Page 4)

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1.0 INTENDED USE
The SRPM is designed to monitor critical environments by providing
differential pressure indication. Typically this is between a monitored
room and a reference space such as a corridor or ante room. The unit
also provides monitoring, alarm and communications functions.
Installation must be indoors, Polution Degree 2, Installation Category II.
Typical Applications:
1. Hospitals – patient isolation and protection rooms, operating
suites, intensive care, and emergency rooms.
2. Pharmaceutical, semiconductor, precision manufacturing, and
clean rooms.
3. Laboratories – medical research, BSL (Bio safety labs), radiation,
vivarium, toxic metals and chemicals. Indoor use only.
1.1 SPECIFICATIONS
Service: Air or nonconductive, nonexplosive gases.
Accuracy: ±0.5% F.S., ±0.25% FS optional
Operating Temperature Limits: 32 to 120°F (0 to 50°C).
Operating Humidity Limits: 5 to 95% Relative humidity
(non-condensing).
Altitude: 2000 meters (max).
Thermal Effects: ±0.03% F.S./ °F (± 0.05% F.S./ °C).
Overpressure: ±15” WC.
Supply Voltage:
Code V1 and V2 85-265 VAC, 50-60 Hz
Code A1 and A2 18-32 VAC, 50-60 Hz.
Power Consumption (Voltage output): 5 W.
Output: Selectable 4-20 mA (2-wire), 0-5 VDC (3-wire), or 0-10 VDC (3-
wire).
Loop Resistance (4-20mA output): 0-510 OHMS Ω.
Electrical Connection: Removable terminal block.
Pressure Fittings: Barbed fi ttings for 1/4” O.D. tubing.
Housing: Fire retardant plastic (NEMA 1, IP20 rated for indoor
applications).
Mounting: Mounts to customer supplied 4½ x 4½ plaster ring (mounts to
double gang electrical box).
Dimensions: 8½ H x 5.4½ W x 1.8½ D (20.3 H x 13.7 W x 4.1
Weight approx.): 1.5 lbs (680 g).
Agency Approval: CE
, CAN/CSA-C22.2 NO. 61010-1-04
Communications: BACnet MSTP ASC, optional, see setra.com for
detailed PICS statement.