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| Loop Powered Intrinsically
Safe Indicators 
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Features:
- Intrinsically safe, Type nL & general purpose models
- ATEX, FM & IECEx certification
- Field & panel mounting models
- 3½ and 4½ digit displays
- Combined analogue & digital displays.
- Optional:
Alarms, Display backlight, Internal calibrator *, Square root extractor
*, Tare function, 16 point lineariser
*standard on 4½ digit models
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We offer an extensive range of loop powered
4-20mA indicators, including models for field and panel mounting in safe
and hazardous areas. Basic loop powered instruments are easy and inexpensive
to apply as they require no additional power supply or extensive wiring.
Accessories including alarms, square root extractors, linearisers
and display backlights further extend the application of these instruments.
Most models can now be supplied with the new loop powered display backlight
which provides sufficient illumination for the display to be read in poor
lighting conditions.
All the intrinsically safe indicators have ATEX and FM approval
and most models also have IECEx certification. The field mounting models
are available with ATEX and IECEx dust approval.
All models are supplied calibrated to customers' requirements free of
charge and they can be labeled to show units of measurement, tag number
and application.
Application Guide AG300 that describes the use of these
indicators may be downloaded here. Instruction manuals and safety certificates
for intrinsically safe and Type nL models may also be downloaded from
the instruction manual and certificate sections.
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No backlight
Display readable in daylight |
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Loop powered backlight
Display readable in poor lighting conditions |
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Separately powered backlight
Display contrast enhanced in all lighting conditions |
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Maximum display for
3½ digit indicators |
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Maximum display for
4½ digit indicators |
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| To select the model for your application please
refer to the following tables:- |
Intrinsically Safe Models |
| Model |
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| Mounting & Enclosure |
Field GRP or Aluminium |
Field GRP |
Panel 96 x 48mm |
Panel 144 x 72mm |
Field GRP or Aluminium |
| Protection |
IP66 |
IP66 |
Front IP65
rear IP20
|
IP66 |
| Certification |
|
| Europe |
ATEX Group II Category
1G EEx ia IIC T5 |
| USA FM |
3610 Entity
CL I, II, III
Div. 1
Gp A, B, C, D, E, F & G
3611 Nonincendive
CL I, II, III
Div. 2
Gp A, B, C, D, E, F & G |
3610 Entity
CL I
Div. 1
Gp A, B, C, & D
3611 Nonincendive
CL I
Div. 2
Gp A, B, C, & D |
3610 Entity
CL I, II, III
Div. 1
Gp A, B, C, D, E, F & G
3611 Nonincendive
CL I, II, III
Div. 2
Gp A, B, C, D,E, F & G |
| IECEx |
No |
Ex ia IIC T5
|
No |
Separate terminal
compartment |
No |
Yes |
No |
No |
No |
| Display |
Digital |
Number of digits
|
3 ½ |
3 ½ |
3 ½ |
3 ½ |
4 ½ |
Display height (mm)
|
25 |
25 |
12.7 |
25 |
20 |
Options
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| Alarms |
No |
No |
No |
No |
Yes |
Backlight,
Separately- powered
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Yes |
Yes |
Yes |
Yes |
Yes |
Backlight,
Loop- powered
|
Yes |
Yes |
Yes |
Yes |
Yes |
External keypad
|
No |
No |
No |
No |
No |
Internal calibrator
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Yes |
Yes |
Yes |
Yes |
Standard |
Lineariser
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No |
No |
No |
No |
Yes |
Root extractor
|
Yes |
Yes |
Yes |
Yes |
Standard |
Tare function
|
No |
No |
No |
No |
Yes |
* Superseded by ‘D’ model shown in following column
#ATEX & IECEx dust certification available
Intrinsically Safe Models Continued |
| Model |
|
|
|
|
| Mounting & Enclosure |
Field GRP |
Panel
48x144mm
|
Panel
96x48mm
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Panel
144x72mm
|
| Protection |
IP66 |
Front IP65
rear IP20
|
| Certification |
|
| Europe |
ATEX Group II Category
1G EEx ia IIC T5 |
| USA FM |
3610 Entity
CL I, II, III
Div. 1
Gp A, B, C, D, E, F & G
3611 Nonincendive
CL I, II, III
Div. 2
Gp A, B, C, D, E, F & G
|
3610 Entity
CL I
Div. 1
Gp A, B, C, & D
3611 Nonincendive
CL I
Div. 2
Gp A, B, C, & D
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| IECEx |
Ex ia IIC T5 |
No
|
Ex ia IIC T5 |
Separate terminal
compartment |
Yes |
No |
No |
No |
| Display |
Digital |
Analogue & Digital |
Digital |
Number of digits
|
4 ½ |
4 ½ & Two 100 segment
bargraphs |
4 ½ |
4 ½ |
Display height (mm)
|
20 |
|
10 |
20 |
Options
|
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| Alarms |
Yes |
Yes |
Yes |
Yes |
Backlight,
Separately- powered
|
Yes |
Yes |
Yes |
Yes |
Backlight,
Loop- powered
|
Yes |
No |
Yes |
Yes |
External keypad
|
Yes |
Standard |
Internal calibrator
|
Standard |
Lineariser
|
Yes |
Yes |
Yes |
Yes |
Root extractor
|
Standard |
Tare function
|
Yes |
No |
Yes |
Yes |
#ATEX & IECEx dust certification available
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