Retrotec DM32 User Manual download pdf (Page 11)

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©Retrotec Inc. 2014

be heated in hot water before being handled. Be careful to dry all water from the tubing prior to connecting since

water in the tube is a major source of measurement error.

Connections on the bottom of the gauge provide a USB charging input and remote control port as well as

an Ethernet remote control port. An Ethernet cable of type Cat5e or Cat6 from the “Network” port can

connect the gauge directly to a PC, to an Ethernet switch, or to a router. Ethernet cables have a maximum

length of 328 ft (100 m); over longer lengths signal strength may be compromised.

Figure 3: Connect charger or remote computer control

Table 2: Physical connections from gauge to a computer or charger are on the bottom of gauge

gauge port

connection

“Network” cable port

A Cat5e or Cat6 Ethernet cable can connect the gauge to a computer, a switch, or a router,

in order to control fan and/or read the gauge measurements via the computer

USB cable port

Connect the USB “A”/“Micro-B” cable to a PC or the supplied AC power adapter in order to

charge the internal battery of the gauge.

Connect the USB to a computer to update the software internal to the gauge (firmware).

“Reset”

Press a paper clip into the hole to reset the gauge – forces the gauge to turn off and back

on again.

2.2 Charge the battery in the gauge

The gauge is charged at the factory, but you can plug it in to ensure a full charge before each test. Connect

the USB cable to the AC power adapter to charge the gauge battery. Charging using the AC power adapter

is the only way to fully charge the gauge. Plugging the gauge into a computer USB port will extend the

length of the charge but the gauge will eventually need to be recharged using the AC power adapter.

With the AC adapter, a full charge will be completed in about four hours. A fully charged gauge will last for

approximately 8 hours without a recharge. For details see 2.5.5

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Retrotec DM32 User Manual Page 11