RKI Instruments GD-70D Series User Manual

- 107 - GD-70D
10-7 Calibrating a Pyrolyzer Unit
The calibration instructions in this section apply ONLY to the sensors listed in the table below. If your
sensor is not listed in the table below, you will need to follow the instructions outlined in one of the other
calibration sections. The warm up times listed are the minimum times between powering up a GD-70D and
calibrating that GD-70D.
Detection Gas
Range
Calibration Gas/
Concentration
GD-70D
Setting
Warm Up Time
After Power-Up
COS (Carbonyl sulfide) 0 - 90.0 ppm Carbonyl sulfide
(COS): 40 ppm
40 ppm 24 hours
NF3 (Nitrogen trifluoride) 0 - 30.0 ppm Nitrogen trifluoride
(NF3): 15 ppm
15 ppm 6 hours
TEOS (Tetraethyl orthosilicate) 0 - 15.0 ppm Silane (SiH4): 15 ppm 10 ppm 2 hours
TMB (Trimethoxy borane) 0 - 1000 ppm Silane (SiH4): 15 ppm 1000 ppm 2 hours
TMS (Tetramethyl silane) 0 - 15.0 ppm Silane (SiH4): 15 ppm 15 ppm 2 hours
TRIMS (Trimethyl silane) 0 - 15.0 ppm Silane (SiH4): 15 ppm 15 ppm 2 hours
Calibration Equipment
• Demand flow regulator (RKI Instruments, Inc. recommends that you do not use a demand flow
regulator that has previously been used for Cl2 or H2S to calibrate a pyrolyzer unit)
• Calibration tubing
• Calibration cylinder of appropriate concentration
Preparing for Calibration
GAS IN Fitting
Remove the dust filter and the sample line from the pyrolyzer’s GAS IN fitting’s tubing stub.
Regulator
Screw the demand flow regulator onto the calibration cylinder.
Accessing Maintenance Mode
From Detection Mode, press and hold the MODE key for three seconds.
0.0ppm
SIH4
↓
↓
1-8.M MODE
Press the ▲ key until the Maintenance Mode screen displays. (For GD-
70D-EA units, the Maintenance Mode screen is item 1-9.)
1- 8
M MODE
MAINTENANCE
↓
↓
User Mode
In "1-8.M MODE", press the SET key.
1- 8
M MODE
MAINTENANCE
↓
↓

RKI Instruments GD-70D Series Specifications

General

Brand	RKI Instruments
Model	GD-70D Series
Category	Gas Detectors
Language	English