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WARNING
Explosive atmosphere testing was accomplished on our TDRs to meet MIL-SPEC
810G, Method 511.5, Procedure 1. The E20/20 TDR and Avionics TDR are free of any
internal ignition sources. However, the following ignition sources are a potential spark
hazard and appropriate precautions apply:
DC Charging Port and A/C Adapter
Charging the E20/20 TDR or Avionics TDR or operating while using the A/C or D/C
adapters can create external sparks. Connecting or use of these power sources in an
explosive atmosphere is dangerous and should never be attempted. Always charge the
TDR away from any explosive atmosphere. Use ONLY internal battery power if the
presence of explosive fumes is a potential hazard.
Coax and RJ-45 Test Ports
The presence of any voltage, from an applied source or static build-up on cables, can
cause an ignition spark when the cable is connected to the TDR. Caution should be
taken to ensure cables are free of any voltages or static charge prior to connecting the
TDR in a potentially explosive atmosphere.
Operating Precautions
1. The TDRs are designed for recharging NiMH or NiCd AA cells only. Do NOT
install and attempt to charge Lion cells as overheating or fire may result. The
resulting damage is not covered under warranty.
2. Alkaline cells may be used safely in the TDR, but when installed go to the Battery
Menu and change the Battery Type to ALKALINE or NONE to turn off the
charger. Attempting to charge alkaline or carbon cells may result in the cells
outgassing. The resulting damage is not covered under warranty.
3. The TDR has input voltage protection and a high voltage detection system which
will warn if connected to more than 50VDC or 1 VAC pk-to-pk. Use caution with
the cable if this detection warning appears in the display as the actual voltage will
be unknown.
4. The TDR is splash resistant and designed to work for relatively long periods in
rain depending on intensity. It is not designed to be immersed in water.