Chapter 7 Servicing And Maintenance; Gauge Calibration And Servicing; Calibration; Servicing/Repairs - TEC DG-700 Operating Instructions Manual

Chapter 7 Servicing and Maintenance

7.1 Gauge Calibration and Servicing


7.1.a Calibration:
The DG-700 is calibrated at our factory prior to being shipped. A sticker on the back of the gauge case will indicate
the date of calibration, as well as the next recommended recalibration date. Under normal operation, we recommend
that the gauge be recalibrated once every two years. Gauge recalibration is a service provided by The Energy
Conservatory for a small fee ($80 as of 7/1/13). Gauges needing recalibration should be sent to:
The Energy Conservatory
2801 21st Ave. S., Suite 160
Minneapolis, MN 55407
Attn: Digital Gauge Recalibration
When returning a gauge for calibration, please print out the Equipment Return Form from our website
(www.energyconservatory.com/sites/default/files/documents/equipment_return_form.pdf), fill it out completely, and
include a copy of the completed form along with the equipment being returned.

7.1.b Servicing/Repairs:
All factory authorized repairs for the DG-700 gauge are conducted at the above address. To have your gauge
repaired, send the gauge to the above address along with a completed copy of our Equipment Return Form (see
above).

7.2 Low Battery Indicator/Battery Replacement

The DG-700 is powered by 6 AA batteries located in the battery compartment on the back of the gauge. We
recommend that Alkaline or rechargeable batteries (e.g. nickel-metal hydride or NiCd) be used with this gauge.
Whenever the gauge is turned on, the battery voltage is measured and temporarily displayed in the Channel B
display area.

7.2.a Low Battery Indicators:
A low battery icon "BAT" begins to blink on the gauge display when it is time to replace (or recharge) the batteries.
The BAT icon is set to appear when the measured battery voltage drops below 6.0 volts. The gauge will continue to
provide reliable operation for a short time following appearance of the BAT icon. Once the batteries have discharged
to a level which prohibits reliable operation, the words "LO BAT" appear in the Channel A and B display areas, and
the gauge will no longer function. Fully charged batteries will typically provide 4-5 days of continuous operation
before the BAT icon appears on the gauge display.

7.2.b Battery Replacement:
To remove the existing batteries from the battery compartment, first turn off the gauge, and then remove the battery
compartment cover plate by sliding it away from the gauge. Carefully remove each battery from the battery
compartment.
Carefully replace the 6 AA batteries. Be sure to insert the batteries with the proper polarity (+/-) as illustrated on the
inside of the battery compartment. Replace the battery compartment cover.
Chapter 7
24
Servicing and Maintenance
Operating Instructions
for the DG700