Honeywell MicroDock II, Operating Manual

Page: 51 / 68

MicroDock II Automatic Test and Calibration Station 51
Calibration
Guidelines
CAUTION
If adjustments are made to the real-time clock, the calibration due date will be
invalid for the XD and X5.
Recalibrate the detector immediately.
When calibrating the sensors, adhere to the following guidelines:
Recommended gas mixture:
•
O
2
clean air, 20.9% vol.
CO (low H
2
sensitivity): 50 to 500 ppm balance N
2
CO 50 to 500 ppm balance N
2
H
2
S (high range) 10 to 100 ppm balance N
2
H
2
S (low methanol) 10 to 100 ppm balance N
2
H
2
S 10 to 100 ppm balance N
2
PH
3
1 to 5 ppm balance N
2
SO
2
10 to 50 ppm balance N
2
NH
3
20 to 100 ppm balance N
2
NH
3
(high range) 20 to 100 ppm balance N
2
NO
2
5 to 50 ppm balance N
2
HCN 5 to 20 ppm balance N
2
NO 10 to 250 ppm balance N
2
Cl
2
3 to 25 ppm (for bump checks only)
VOC 100 ppm isobutylene
CO
2
5000 ppm balance air or 0-5.0 % v/v CO
2
LEL
10 to 100% LEL or 0.5 to 5% by vol. methane
balance air
Calibrate only in a clean atmosphere that is free of background gas. Do not
•
operate the station in a hazardous area. Failure to adhere to this guideline
can result in possible personal injury and/or property damage.
Honeywell Analytics recommends using premium grade calibration gases
•
and cylinders that are certified to National Standards. The calibration gases
must meet the accuracy of the detector.
Do not use a gas cylinder beyond its expiration date.
•
All calibration cylinders must be used with a demand flow regulator and
•
must meet the following maximum inlet pressure specifications:
Disposable cylinders 0-1000 psig/70 bar i.
Refillable cylinders 0-3000 psig/207 bar ii.
Refer to the detector user manual for recommended calibration
•
frequencies.