Sealed & Ruggedized Indicator Series

CROMPTON TECHNOLOGY   
Elapsed Time Meters
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078/080/087 Series 240° scale

The Crompton 078/080/087 Series of heavy duty sealed instruments are designed to comply with the most stringent industrial, marine and military specifications. This metal cased range operates efficiently in the most adverse environments where extreme conditions of shock, vibration, dirt, humidity and temperature variation are present. Series 080-240° sealed complies with Ministry of Defence specification DEF STAN 66.7.

 

Metal cases with bezel sizes of 57 x 57mm (083), 83mm Ø (084) and 110mm x 110mm (078/087) fitted with toughened glass windows, are used throughout the series in standard matt black finish, which can be replaced with the optional light admiralty grey to BS3181C No:697. In order to avoid fogging they are dried, evacuated and filled with dry nitrogen.
The sealing provided is such that with the interior of the case maintained at a constant pressure of at least 94kPa above the exterior, the leakage does not exceed the equivalent of 1.33 Pa ml/s of air. Except on model 083, panel sealing gaskets are provided as standard. Standard instrument dials are finished in acrylic matt white with black printing and a parallel pointer. The scales form a true arc with zero on the left hand-side.  Options available include a centre zero, offset zero or suppressed zero, colour index lines, bands, zones or segments, black dial with white printing, and customers logo.

080 Series 90° scale

A range of metal cased, sealed instruments for use in industrial and military applications involving extreme shock, vibration, temperature, dirt or humidity.
Sizes 081, 082, 083 and 084 comply with Ministry of Defence specification DEF STAN 66-7 or DEF STAN 66-9 for all ratings listed in the standard. Size 089 complies with MIL-M-10304 dimensionally.

 

Five bezel sizes of 32mm Ø (081), 45mm Ø (082), 57 x 57mm (083), 83mm Ø (084) and 89mm Ø (089). Barrel diameters of 26mm (081), 37mm (082), 53mm (083), and 67mm (084 and 089). Toughened glass windows are used throughout the series. In order to avoid fogging they are dried, evacuated and filled with dry nitrogen.
Except on model 083, panel sealing gaskets are provided as standard.
The smaller cases, Models 081 and 082, are made from nickel-plated brass and anodised aluminium alloy. Single hole fixing is made by means of a threaded clamp ring which screws onto the barrel, they also have
ceramic insulated terminals and no zero adjuster is fitted. Models 083, 084 and 089 have steel cases with fixing holes in the flange.

Sealed zero adjusters are provided.
Standard instrument dials are finished in matt white with black printing and parallel pointer. The scales form a true arc with zero on the left.

PLEASE SEE TECHNICAL INFORMATION - PDF FOR COMPLETE INFORMATION
 

078/080/087 Series 240° scale

080 Series 90° scale

Features:

- BSEN 60051
- DEF STAN 66-7 on request (087 only)
- Toughened glass window with metal   bezel
- Rugged Hi-Q taut-band suspension
- Scaling: To BS89, BS3693 or DEF STAN 66-7 and 66-9
- Accuracy class, see the table on the next page
- Bump, shock and vibration proof

- IP67 (NEMA 6 & 6P)
- Intrinsically safe option to EEx ia 11C T4
- Dial illumination option
P- rallax error-free platform dials on 078/087 optional on 083/084
- Ambient operating temperature range -40°C to +70°C
- Calibrated at 23°C
- Storage -55°C to +85°C
- Dielectric Test: 2kV r.m.s to
- BSEN61010-1 and Overloads:
     x 1.2 rated current for 2 hours
     x 10 rated current for 5 seconds
     x 1.2 rated voltage for 2 hours
     x 2 rated voltage for 5 seconds

- BSEN60051 (081 to 084)
- DEF STAN 66-7 and 66-9 on request (081 - 084 and 089)
- Rugged Hi-Q taut-band suspension
- Extreme shock, vibration, temperature, dirt and humidity resistant
- Illumination option
080 Series 90° scale
Specification:

Scaling:

To BS89, BS3693 or DEF STAN 66-7 and 66-9 (081 to 084)

Accuracy:

081 Class 5, others Class 2.5

Frequency Meter 0.5% of Mid Frequency (083, 084, 089)

Enclosure code:

083/084/089:

to IP67 (NEMA 6 & 6P)
081/082: to IP68

Ambient temperature range:

081 to 084:

-40°C to +70°C
089 -55°C to 65°C

Calibrated:

at 23°C.

Dielectric Test @50Hz:

750V r.m.s (081)
1kV r.m.s (082)
2kV r.m.s (083/084/089)
<50V 500V r.m.s
All for 1 minute

Overloads:

x 1.2 rated current or voltage for 2 hours
x 10 rated current for 5 seconds
x 2 rated voltage for 5 seconds

Burden:

A.C. Ammeter: 1VA Maximum
A.C. Voltmeter: 3VA Maximum
Frequency Meter: 4VA Maximum
Elapsed Time Meter: 2.5VA Maximum

Options:

Options available include a centre zero, offset zero or suppressed zero, colour index lines, bands, zones or segments, black dial with white printing, customer logo.


Model 081:
Through dial, white or red bulb, 12 or 24V illumination.
Models 081/082:
Betalite through dial, 12 or 24V, illumination.
Models 082/083/084/089:
Through dial, red or clear LED 12 or 24V illumination.
Models 083/084/089:
Edge, White or Red bulb, 12 or 24V, illumination.


Instruments operated by separate transducers to indicate watts, vars, frequency, phase angle, current, voltage or physical/mechanical parameters are available.
080 Series Dimension

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