ES-3138 Rev.8
BPT
Space-saving Two-wire Signal Conditioners B-UNIT
PT TRANSMITTER
Functions & Features
• Converting an alternating voltage from a potential (voltage) transformer into an isolated 4 – 20 mA DC signal
• Minimal ripple
• True RMS sensing
• Monitor terminals
• High-density mounting
Typical Applications
• Centralized monitoring and control of power line and power supply voltages measured at switch boards
• Monitoring abnormal voltage drops for detecting overload
MODEL: BPT–[1][2]
ORDERING INFORMATION
• Code number: BPT-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. BPT-1/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT
Voltage
1
: 0 – 110 V AC
5
: 0 – 150 V AC
[2] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal
: Nickel-plated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output
Input waveform
: Up to 15 % of 3rd harmonic content
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
Frequency
: 50 or 60 Hz
Input burden
: 0.5 VA max.
Overload capacity
: 200 % of rating for 1 minute, 120 % continuous
Operational range
: 0 – 120 % of rating
OUTPUT SPECIFICATIONS
Output
: 4 – 20 mA DC
Load resistance vs. supply voltage:
Load Resistance (Ω) = (Supply Voltage (V) – 12 (V)) ÷ 0.02 (A) (including leadwire resistance)
INSTALLATION
Supply voltage
: 12 – 60 V DC
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail; Standard Rack Mounting Frame BX-16H available
Weight
: 160 g (0.35 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.3 %
Temp. coefficient
: ±0.03 %/°C (±0.02 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Ripple
: 0.5 %p-p max. (100/120 Hz)
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute (input to output)
1500 V AC @ 1 minute (input or output to ground)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM