DRI-DC Omega信号放大器DRI-DC
DRI-DC
过程测量和控制仪器 » 信号调节器和发射器 » DRI-DC
交流供电的直流输入DIN轨道信号调节器
现场可配置输入/输出范围
1800伏直流电隔离
触控校准技术
高密度的DIN导轨安装
通用AC电源85到265 VAC
产品描述
The model DRI-DC is an AC powered, DIN rail mount, DC input signal conditioner, with 1800 Vdc isolation between input, output and power. It provides a fully isolated DC output signal in proportion to a DC input. The field configurable input and output feature offers flexible, wide ranging capability for DC current and voltage signals.
Using a pushbutton instead of potentiometers, improvements in calibration resolution and reliability are realized due to the elimination of the potentiometers’ mechanical variability. The thermal drift and mechanical variability of the potentiometers has been removed and replaced with a digitally stable circuit. Additionally, the inherent zero and span interactivity of analog amplifier circuitry is removed, providing 100% non-interactive adjustment.
The DRI-DC can be field configured for virtually any DC input to DC output within the limits specified. Calibration utilizes touch calibration technology where the user simply configures the input for the current or voltage range via switches, then follows the calibration procedure. The output is set by adjusting the input until the desired output is present and then pressing the CAL button to store the output level.
The DRI-DC has three diagnostic LEDs. The green (RUN) LED is used for diagnostics to indicate that power is on. It will flash quickly if the input signal is above the calibrated range or slowly if the input signal is below range. It is on continuously when the unit is functioning within the calibrated range.
The DRI-DC can be configured for input ranges from 10 mV to 100 V or 1 mA to 100 mA, with >90% input offset or will adjust down to <10% of full scale input span (except on 20 mV/2 mA range where maximum offset or gain adjustment is 50%). The factory default configuration for the DRI-DC is:
Input Range: 20 mA (current on)
Input Configuration: Unipolar
Calibrated Input: 4 to 20 mA
Operation: Direct (reverse off)
Calibrated Output: 4 to 20 mA
Specifications
INPUT
Voltage Input:
Range: 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1V, 2V, 5V, 10V, 25V, 50V, 100V (dip-switch selectable)
Impedance: ≥100 kΩ
Overvoltage: 200V continuous
Current Input:
Range: 2 mA, 5 mA, 10 mA, 20 mA, 50 mA, 100 mA (dip-switch selectable)
Impedance: 20 Ω typical
Overcurrent: 170 mA, protected by self-resetting fuse
Overvoltage: 60V
Pushbutton Adjustment (Inputs >10 mV):
Effective Zero Offset: ≥90%
Effective Span Turn Down: ≥90% except 20 mV/2 mA range in which 50% is max zero offset and span turndown
OUTPUT
Voltage Output:
Range: 0 to 5V, 0 to 10V (dip-switch selectable)
Source Impedance: <10 Ω
Drive: 10 mA max
Current Output:
Range: 4 to 20 mA, 0 to 1 mA, 0 to 20 mA (dip-switch selectable)
Source Impedance: >100 kΩ
Compliance:
0 to 1 mA: 7.5V max (7.5 kΩ)
4 to 20 mA: 12V max (600 Ω)
0 to 20 mA: 12 V max (600 Ω)
Output Ripple:
<50% Offset or Span Adjust: <0.1% of full scale span or 25 mV RMS, whichever is greater
>50% Offset or Span Adjust: <0.2% of full scale span or 50 mV RMS, whichever is greater
Output Accuracy:
>2 mA / >20 mV Input Spans: ±0.1% of full-scale input typical, ±0.2% maximum
<2 mA / <20 mV Input Spans: ±0.35% of full scale input typical, ± 0.5% maximum including linearity, repeatability and hysteresis @ 23°C
Response Time: 200 msec, typical
Stability: ±0.025% of full scale/°C, maximum for full scale and zero
Common Mode Rejection: 120 dB at DC, >90 dB at 60 Hz
Isolation: ≥1800 Vdc or peak AC between input, output, power and channel-to-channel
ESD Susceptibility: Capable of meeting IEC 801-2 level 3 (8 kV)
Humidity (Non-Condensing):
Operating: 15 to 95% RH @ 45°C (113°F)
Soak: 90% RH for 24 hours @ 60°C (140°F)
Temperature:
Operating: 0 to 55°C (32 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Power: 100 to 240 Vac, ±10%, 50 to 400 Hz; 2.5 W max
Wire Terminals: Socketed screw terminals for 12 to 22 AWG
Weight: 227 g (0.5 lb)
产品编号 产品描述
DRI-DC AC powered DC input DIN rail signal conditioner
Accessories
RAIL-35-1 35 mm DIN rail, 1 m (3.3') length
RAIL-35-2 35 mm DIN rail, 2 m (6.6') length
ACPB-2 AC power distribution bus for 2 modules
ACPB-4 AC power distribution bus for 4 modules
ACPB-8 AC power distribution bus for 8 modules
DRI-DC信号调节器 美国omega
DRI-DC
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