Summary
DL2-2V150B21 singlel-pointer gauge is a measuring gauge
pointer, a kind of 240°wide angle gauge. It can display the voltage r
gauge is composed of movement, meter dial, lighting, and shell.
advantages: small volume, convenient installation, and easy readi
reading, and high reliability etc..

Technique Parameter
1\Accuracy:±1.5%;
2\Display scale:Primary scale 20V,Secondary scale 5V;
3\Lighting voltage:LED Light 110V;
4\Measuring mechanism current:0~1.5mA;
5\Driving value:0~150V;
6\Dial color:Base black; Scale white;
7\Pointer color:Yellow green;
8\Applicable environment:-25℃~+70℃,Relative humidit
9\Isolation Strength: 1000V/50Hz/1min    sine wave
10\Insulation resistance:not less than 5M?;  
11\Vibration:1g,100Hz;
12\Protection grade:Front plate IP54,Connector IP40;
13\Connector:DB 9-pin connector;
14\Weight:≤0.8Kg; 

Outline Dimension


Connection Diagram


Definition of DB 9-pin connector:
Pin 1:Input signal +
Pin 2:Input signal -
Pin 8:Lighting voltage 110VDC +
Pin 9:Lighting voltage 110VDC –

Reliability Design  
1\With temperature compensating circuit, ensuring the gauge accuracy within working
temperature.
2\With anti-electromagnetic-jamming circuits, ensuring normal working under the
electromagnetic-jamming circumstances of surge, electrical fast transient burst, and static.  
3\ With complete air-proof treatment, each opening hole in the shell is airproof treated.
4\ With LED lighting diffuse reflection treatment, even brightness of dial plate, soft lighting,
without glare and apparent facula.

Maintenance
1\The gauge has to be readjusted after each operation for three months, in order to ensure the
accuracy.
2\When adjusting, take off the rubber plug at the bottom of gauge, put it in the device at an
angle of 60o with level, use screwdriver to adjust till it reach the stipulated value.
3\In the process of operation, make sure avoiding frequent and longtime overload.
4\Please do not touch the moving element, pointer, pin tube, balance hammer, and spring in
the movement, otherwise it will cause error.