ION GASCLAM 2 Software Manual page 8

GasClam 2 Software Manual
The GasClam 2 can use 4 approved power sources:
2x 1.5 V Alkaline-Manganese Duracell - MN1300 (Alk-Mn)
2.6 V Nickle Metal Hydride rechargeable battery pack (NiMH)
7.2 V Lithium non-rechargeable primary battery pack (Li)
12 V External dc power supply (Ext)
The GasClam 2 automatically selects the power supply type based on the voltage of the source.
Important: all sources must be of the nominal voltage when inserted otherwise an incorrect source can be
selected, it is highly recommended that when replacing batteries only new or fully charged batteries are inserted.
The power source is automatically selected after a hard reset (the GasClam 2 is without power for more than 10s)
and is set in the GasClam 2 memory until the next hard reset.
NOTE: The Alkaline and Metal Hydride batteries have similar nominal voltages. The GasClam 2 automatically
selects the Mi-MH battery, however when Alkaline batteries are inserted change the power supply manually (see
Logging Setup section).
After new batteries have been inserted or an external power supply connected, check that the correct power
supply has been selected in the "Power Supply" line and that the "Power Status" is showing the correct voltage
and colour.
The "Power Status" voltage and bar are a live reading of the battery voltage and will change during the sampling
sequence as the load on the battery changes. The bar also changes colour according to capacity of the battery or
external power supply providing a rough guide to the actual state of the supply.
Green:
Yellow:
Red:
If the voltage falls below a set value, indicating that the capacity is no longer sufficient to continue sampling the
GasClam 2 will automatically interrupt logging and switch to Sleep Mode. A battery error will be logged. All
logging and error data is stored in non-volatile memory and will not be lost.
1) Alkaline-Manganese Duracell - MN1300 (Alk-Mn)
Nominal voltage 3.1 V
Minimum auto-select voltage > 2.6
V Stop logging sleep voltage ≤ 2.1
2) Nickle Metal Hydride rechargeable battery pack (NiMH)
Nominal voltage 2.7 V
Minimum auto-select voltage > 2.4 V Stop logging sleep
voltage ≤ 2.1
3) Lithium non-rechargeable primary battery pack (Li)
Nominal voltage 6.85 V
Minimum auto-select voltage > 6.7
V Stop logging sleep voltage ≤ 4.0
Unrivalled
Capacity is fine for a long sampling period.
Batteries need to be replaced very soon.
Replace batteries immediately.
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