Detcon 971-071170-00L - Manual (Page 6)

To Calibrate: (refer to illustration on the previous page)
1. Turn the 3-way valve so that the arrow is pointing down. Sample is now being drawn from the CAL port.
2. Using the 1/4" Tee assembly, connect the span gas cylinder to the calibration port. Note that the cylinder
flow rate should be 1000 ml/m while the sample draw flow rate should be adjusted to 500 ml/m. This will
assure that the sample is not diluted. Be sure to ad the 6” vent tubing as shown to prevent dilution.
3. Follow the calibration instructions given in the sensor instruction manual.
4. Close cylinder valve to allow clearing/zero stability. Note that zero and span functions may interact
slightly with one another. Zero and span tests may be repeated 2 or 3 times as necessary.
5. When calibration is complete turn the 3-way valve so that the arrow is pointing up.
1.5 SPARE PARTS
Part# Description
325-400000-000 & 3254-BT2 Power switch (need both parts)
283-1G0000-000 Power indicator lamp
283-1R0000-000 Flow fualt indicator lamp
500-005151-002 Flow fault circuit assembly
351-800000-000 24 VDC pump
348-900000-000 1000 ml/m flow meter with valve
360-6SD1SD-200 117VAC to 24VDC power supply assembly
823-600000-000 Moisture filter pot
1.6 WARRANTY
Detcon Inc., as manufacturer, warrants under intended normal use each new Model 971-071170-00L gas
detection system to be free from defects in material and workmanship for a period of one year from the
date of shipment to the original purchaser. Sensor assembly warranties are explained in their respective
instruction manuals. All warranties and service policies are FOB the Detcon Inc. facility located in The
Woodlands, Texas.
1.7 FLOW DIAGRAM
Detcon Model 971-071170-00L Gas Detection System PG.6
CAL
Flow
Meter
Set
500-1000
ml/m
VENT
SENSOR
Sample In
P1 P2
PUMP Flow
Switch
Moisture Filter
S
tainless Steel