Troubleshooting; Accessories And Spare Parts - DALEMANS DAT 420 Calibration Manual

7.

TROUBLESHOOTING

SYMPTOMS
Detector shows
reading in the absence of gas.
Detector shows a zero reading
in presence of gas.
8.

ACCESSORIES AND SPARE PARTS

ACCESSORIES
Calibration mask for FPH01 sensing head
Hose - PVC Ø 4 mm
Key for locking screw (1.5 mm hex key)
Measurement probes - Pitch = 2 mm
Spanner for the base of the sensing head (30 mm)
Spanner for the top of the sensing head
DAX 420
Cable gland - Ex d M20 (6.1 - 11.7 mm)
Cable gland - Ex d M20 (6.5 - 14 mm)
Ferrite
Gasket for electrochemical sensor
Junction box - Ex d aluminium
Screw for locking the body of FPH01 sensing head
Screw for locking the cover of the junction box
Screw M4 x 6 mm
Sensing head - FPH01 (without sensor)
Sintered metal filter
Stopper plug - Ex d brass M20 x 1.5 mm
Terminal block - Ex e 2P + DIN rail
Transmitter - 4..20 mA TOX420
DAT420_MAN02_EN.docx • V1R1
Wear of measuring sensor.
a non-zero
Calibration fault.
Wiring fault.
Sintered metal filter either dirty or blocked.
Sintered metal filter contaminated.
POSSIBLE CAUSE
DAT 420
ACTION
Calibrate detector
procedure given above.
Check detector wiring and connection
of sensing head.
Clean or replace filter.
Replace filter;
Replace measuring sensor;
Calibrate detector.
Table 3 : Troubleshooting
ARTICLE CODE
OUT00000089
TUB00000009
OUT00000115
ACC00000012
OUT00000114
OUT00000113
ARTICLE CODE
PRE00000032
PRE00000036
FER00000001
MEC00000018
BOI00000188
VISVIS00066
VISVIS00067
VISVIS00042
DET00000019
MEC00000010
PRE00000033
BOR00000087
BASTRX00017
Table 4 : Accessories and spare parts
www.dalemans.com
according to
12