Novus DC80L User Manual download pdf (Page 8)

5. MODEL DC80L

The DC80L is the calibrator model for measuring and simulating V, mV and mA

signals. The DC80L is capable of measuring and generating 0 to 24 mA DC

current signals and voltages up to 15 V DC. Simultaneous measurement and

signal simulation is not provided.

Current measurements options are:

- With use of external power supply provided by the system. In this case, the

calibrator is placed in series to measure the loop current (signal of a 2-wire

transmitter, for example).

- The calibrator provides the power to the loop. This option makes use of the

DC80L built-in power supply. This configuration applies to measurements of

standalone 4-20 mA transmitters (sink type transmitters).

Current simulation possibilities are:

- The calibrator sources the current to the target instrument.

- The calibrator simulates (behaves as) a 2-wire transmitter.

The following tables show the DC80L specifications functions and ranges, based

on a one year calibration period, at ambient temperatures ranging from +18 °C to

+28 °C. “Counts” means units of the least significant digit.

Voltage measurement and simulation:

Function Range Resolution

Accuracy ± (% of reading +

Counts)

DC V / mV INPUT

Auto range

0 ~ 110 mV 0.01 mV ± (0.05 % + 5 counts)

0 ~ 15 V 0.001 V ± (0.05 % + 5 counts)

DC V / mV

OUTPUT

0 ~ 100 mV 0.01 mV ± (0.05 % + 5 counts)

0 ~ 15 V 0.001 V ± (0.05 % + 5 counts)

Input impedance: 2 M Ω (nominal) < 100 pF

Over voltage protection: 30 V

Voltage driver capability: 1 mA

DC mA measurement and simulation

Range Resolution

Accuracy @ 25 °C

± (% of reading + Counts)

0 ~ 24 mA

(Input and Output)

0.001 mA ± 0.03 % + 5

Overload protection: 125 mA, 250 V fast acting fuse

Percent display: 0 % = 4 mA, 100 % = 20 mA

Source mode: compliance 1000 Ω at 20 mA for battery voltage ≥ 6.8 V ( 700 Ω

at 20 mA for battery voltage 5.8 to 6.8 V )

Simulate mode: External loop voltage requirement: 24 V nominal, 30 Vmax, 12 Vmin

Loop Power

Internal power supply

24 V ± 10 % / 25 mA max.

1 2 3 4 5 6 7 8 9 10 11 12 13

Comments to this Manuals

No comments

Novus DC80L User Manual Page 8

Comments to this Manuals

Related products and manuals for Sensors Novus DC80L