MSA Chillgard RT - Relay Module Troubleshooting

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Table 1-1. Chillgard RT System General Operating Specifications
PERFORMANCE SPECIFICATIONS
STABILITY
0-50 ppm, +1 ppm; ammonia is 2 ppm
51-1000 ppm, +10% of reading
SHORT TERM NOISE
+1 ppm peak over a 10-minute period;
ammonia* is +2 ppm
LINEARITY
0-50 ppm +1 ppm; ammonia* is +2 ppm
51-1000 ppm, +10% of reading
WARM-UP TIME (READY)
24 hours maximum; typical, 20 minutes at 70°F (21°C)
ambient
RESPONSE TIME
90% of a step-change and alarm condition
within 110 seconds
TRANSPORT TIME
500 FT (152 M) OF
SAMPLING TUBING LENGTH
150 FT (46 M) OF
SAMPLING TUBING LENGTH
13 minutes for a 90%
step change
105 seconds for a 90%
step change
OPERATING
TEMPERATURES
0°C to 50°C (32°F to 122°F)
TEMPERATURE EFFECT
+0.3%/°C of reading, +0.1 ppm/°C
RELATIVE HUMIDITY
0 to 95%, RH non-condensing
SAMPLE FLOW RATE
.75 liter per minute - minimum with maximum tubing
length; typically 1.2 to 1.5 liters per minute with no tubing
MAXIMUM SAMPLE OR
EXHAUST TUBING LENGTH
150 feet (46 m) with 1/8" (3.2 mm) ID tubing, 1/4" (6.4 mm)
OD (total of Inlet & Outlet); 500 feet (152 m) with
0.18" (4.6 mm) ID tubing
OPERATING PRESSURE
ambient atmospheric
OPERATING SPECIFICATIONS
VOLTAGE RATING
100 to 240 VAC, 50-60 Hz
POWER REQUIREMENTS
.88 amps at 120 VAC;
.54 amps at 240 VAC
TROUBLE RELAY
Normally energized, Form C contact: 240 VAC,
8 amp resistive SPDT
WARNING RELAY
One relay, Form C contacts: 240 VAC,
8 amps resistive SPDT
CAUTION RELAY
One relay, Form C contacts: 240 VAC,
8 amps resistive SPDT
ALARM RELAY
One relay, Form C contacts: 240 VAC,
8 amps resistive SPDT
ANALOG OUTPUTS
4 to 20 mA sourcing, 1,000 ohm load, 0-10 V,
2 K ohm load
MAXIMUM OUTPUT SIGNAL
LOAD FOR 4-20 MA OUTPUT
1000 ohms (includes wiring)
AUDIO ALARM DRIVE
OUTPUT
10 VDC 20-ohm load maximum
(available only with non-beacon models)
SAMPLE TUBING
CONNECTIONS
1/4" (6.4 mm) OD
DIMENSIONS
18" high, 16" wide, 7" deep
45.7 cm high, 40.6 cm wide, 17.8 cm deep