Ap pen dix
Speci fi ca tions
(cont’d)
Electrical Specifications
(cont’d)
For interfacing with 250 ohm input
impedance devices, the following maximum
cable lengths apply, with respect to the
Analog Signal. The total loop resistance can
be no greater than 300 ohms.
AWG
Feet
Meters
22 1600 488
20 2400 730
18 3800 1160
16 5200 1585
14 9000 2740
NOTE
:
Good design practices dictate
cable lengths conservatively shorter than
the maximum given values.
Input Power:
24VDC @ 300mA nom., 1A during SU
20 to 30VDC range
Output Current: (300 ohms max.)
Signal Range 0 to 22mA
Malfunction 0.0mA
Calibration 1.5mA(0mA
optional)
Test Gas Mode 1.5mA(always)
Detection Range 4 to 20mA
Over-Range: 20 to 22mA
Electrical Classification:
Class I, Division 1, Groups B, C & D
NEMA 4x rated
5.1.4 Environmental Specifications
Operating Temperature Range:
-40°F to 140°F
-40°C to 60°C
Storage Temperature Range:
-31°F to +131°F
-35°C to +55°C
Humidity Range:
15 to 90% Relative Humidity
non-condensing
18
GENERAL MONITORS
Model S214
