Instructions

UM-0085-B09 DT80 Range User Manual Page 293
RG
• 12V power output (Series 3 and older)
• 12V/5V regulated power output (Series 4 only)
• 5V SW regulated power output (Series 3 only)
• V/I DAC regulated voltage and current output (Series 4 only)
• WiFi operation
The actual power consumption of each of these will be discussed further below.
Calculating Average Power Consumption
The DT80's average power consumption will depend on:
• the amount of time that is spent in each power state (active, idle and sleep), which mainly depends on the
schedule sample rate and the number and type of channels being measured
• the number of analog channels being measured (sampling an analog channel will cause the analog
measurement subsystem to be enabled for the duration of the measurement)
• which other hardware modules are enabled
• whether logging is enabled
 Step 1 – Core Hardware
The first step is to determine the average power consumption of the DT80 core hardware – that is, excluding "non-core"
hardware modules such as Ethernet or the battery charger.
Each of the following tables lists the typical power consumption of the DT80 core hardware for various sample rates (a
single time based schedule is assumed) and various numbers of analog channels (0, 5, 30 and 300). It is assumed that
logging is enabled (
LOGON), real-time data returns are disabled (/r), and sleep is enabled (see Sleep Mode (P300)).
The first table indicates the average power consumption when running from the internal 6V battery, the second is for
when an external 12V supply is used and the third is for an external 24V supply.
Scan rate
0 analog channels
5 analog channels
30 analog channels
300 analog channels
continuous 1200 mW 1550 mW 1520 mW 1520 mW
1 sec
320 mW
610 mW
1520 mW
1520 mW
5 sec
170 mW
250 mW
510 mW
1520 mW
10 sec 90 mW 120 mW 260 mW 1520 mW
1 min
16 mW
20 mW
45 mW
280 mW
10 min 4 mW 4 mW 6 mW 30 mW
1 hour
3 mW
3 mW
3 mW
7 mW
10 hour and above
2 mW
2 mW
2 mW
2 mW
Table 11: DT80/ 81/ 82I /85/ 85G core hardware average power consumption (internal battery power)
Scan rate
0 analog channels
5 analog channels
30 analog channels
300 analog channels
continuous 1800 mW 2300 mW 2260 mW 2260 mW
1 sec
520 mW
950 mW
2260 mW
2260 mW
5 sec 310 mW 420 mW 800 mW 2260 mW
10 sec
190 mW
240 mW
430 mW
2260 mW
1 min
85 mW
90 mW
120 mW
470 mW
10 min
62 mW
63 mW
65 mW
100 mW
1 hour
61 mW
61 mW
61 mW
67 mW
10 hour and above 60 mW 60 mW 60 mW 60 mW
Table 12: DT80/ 81/ 82I/ 85/ 85G core hardware average power consumption (external 12V power)
Scan rate
0 analog channels
5 analog channels
30 analog channels
300 analog channels
continuous
2200 mW
2800 mW
2760 mW
2760 mW
1 sec 730 mW 1250 mW 2760 mW 2760 mW
5 sec
530 mW
650 mW
1080 mW
2760 mW
10 sec
390 mW
450 mW
670 mW
2760 mW
1 min 275 mW 290 mW 320 mW 720 mW
10 min
253 mW
253 mW
255 mW
300 mW
1 hour 250 mW 250 mW 250 mW 255 mW
10 hour and above
250 mW
250 mW
250 mW
250 mW
Table 13: DT80/ 81/ 82I/ 85/ 85G core hardware average power consumption (external 24V power)