• Step 1. Know why, how, and where you will gather environmental data
• Step 2. Prepare your PEMs and start gathering data
• Step 3. Control the urge to check data too often
• Step 4. Transfer data from the PEM with an SRAM card

Step 4. Transfer data from the PEM with an SRAM card

Place the SRAM card in the slot on the right side of the PEM with the arrow pointing into the slot and press it in firmly.

• Press the READ and F/C buttons momentarily.
• If the card is new, the display will show CRD and RESET for two minutes, while the card is initialized and formatted.
• If the card is not new, the display will show CRD and UPLOADING for twenty seconds, as data is transferred.
• When the upload is complete, the display returns to normal.

Remove the card. A one-megabyte card can upload data from eight PEMs; a two-megabyte card can upload from 16 PEMs

• When a card is full the PEM display will show CRD FULL.
• You can reset the card, but be sure you have saved any stored data on your computer, because any data on the card will be overwritten.

Reset a full card by inserting it into the PEM and pressing and immediately releasing the recessed PAUSE button.

• The display will show CRD/RESET. Leave the card in for about two minutes, or until the display returns to normal operation.

What the PEM is doing

• All data from the PEM is being copied to a file on the card.
• The PEM always retains its internal data and keeps a count of uploads. This count is displayed during the actual upload.
• The data is written to the card in a file, the name of which starts with P_ followed by the PEM’s serial number and a three-digit file extension based on the upload count. (For example, P_A00205.002 would be the name of the data file for PEM #A00205, upload number two.)

RECALIBRATION
When the PEM displays BATT LOW, the unit can be returned to IPI for humidity sensor recalibration or replacement, clock reset, and battery replacement. See calibration request form (PDF) .