5. SPARE PARTS AND ACCESSORIES
Please refer to the Sensor Replacement Label mounted on the outside of
the 96HD housing for the correct replacement part number.
Description
Part no.
Complete 96HD sensor
Sensor
housing with sensor
only
Hydrogen sulphide
(96HD/HS) S01750
E01229
Carbon monoxide
(96HD/CO) S01751
E01344
Ammonia
(96HD/AM) S01752
E01618
Oxygen
(96HD/OX) S01753
E01488
Sulphur dioxide
(96HDSO) S01901
E01232
M20 to 1/2” NPT adaptor
M02125
M20 to 3/4” NPT adaptor
M02281
Ceiling mounting bracket
M01401
Collector cone
C01051
Weatherproof cap
C01442
Sinter removal tool
M01614
Sinter assembly
S01781
Gasket 1
M04452
Gasket 2
M04128
Amplifier - toxic version
S01866
Amplifier - oxygen version
S01867
Terminal board
S01846
Relay board
S01847
Calibration gas
Contact Crowcon
Loctite no. 243
Contact Crowcon
89/336/EEC
This product has been tested and found to comply with the European Directive on EMC 89/336/EEC
Crowcon Detection Instruments Ltd, 2 Blacklands Way, Abingdon Business Park, Abingdon, Oxfordshire OX14 1DY, UK
Tel: +44 (0)1235 553057, Fax: +44 (0)1235 553062, email: [email protected], internet: http://www.crowcon.com
Installation, operating and maintenance instructions, M07194-A4
6. SPECIFICATION
Dimensions
200 x 115 x 115 mm (8” x 4
1
/
2
”
x 4
1
/
2
”)
Weight
2.2 kg (4.8 lbs)
Material
96HD sensor housing: 316 Stainless steel
Junction box: Marine grade alloy
Temperature range
-10–55°C (14–131°F)
Humidity range
0–99% RH, non condensing
Ingress protection
IP66 with weatherproof cap
Explosion protection
Flameproof
Approval codes
CENELEC EEx d IIC T6
UL Class 1, Zones 1 & 2, AEx d IIC T6
Standards
EN50014, EN50018, UL2279
Zones
1 and 2
Gas groups
IIA, IIB and IIC
Operating voltage
10–30 Vdc
Operating current
Relay version:
100 mA (maximum)
Non-relay version:
50 mA (maximum)
Detector output
4–20 mA source or sink selectable
0 mA
= Fault
2 mA
= Inhibit (4 mA option)
4–20 mA
= 0–100% LEL
24 mA
= Over range
Relay outputs
2 x Alarm relays SPNO (SPNC option)
1 x Fault relay SPNC (SPNO option)
Contact rating
1 A @ 30 Vdc
i.
Using a long instrument screwdriver, turn the relevant ALARM SET pot
mounted on the terminal board (see Diagrams 1 & 2) to adjust the alarm
level. Tripping of the ALARM 1 level relay is confirmed by the status LED
turning a steady red. Tripping of the ALARM 2 level relay is confirmed by
the Status LED flashing red.
j.
Once the alarm level has been set, place end of ‘CRO-Mag’ over the ‘UP’
or ‘DOWN’ arrow pads and reset the display to read zero.
k.
Place the end of the ‘CRO-Mag’ over the ‘MENU’ pad to return the
detector to normal operation, ie. No decimal points displayed, backlight
off and the Status LED indicating steady green.
l.
Check that the detector operates correctly by applying test gas as
necessary.
m.
Switch off and isolate power to the detector.
n.
Reset jumpers which may have been changed in step ‘d’ above.
o.
Replace the amplifier and close the junction box, ensuring that all screws
have been re-fitted correctly.
p.
Apply power to the detector and allow to stabilise before checking correct
operation.
q.
Re-calibrate if necessary as per section 4.1.
NOTES
