TSURUGA MODEL 451B
Quantity
Temperature Measuring Digital Panel Meter
- ■ Thermocouple input/Platinum-resistance thermometer input
- ■ High-resolution of 0.1 or 0.01°C display
- ■ Water- and dust-proof IP65 front panel
- Model Designation
-
451B - □ - □ - □ ① ② ③ ①Power supply voltage
Code Power source voltage A AC 100 to 240 V B DC 12 to 24 V C DC 110 V ②Data output 1
Code Data output Output impedance Tolerable Load resistive Blank - 09 Analog output DC 0 to 10 V
(Available scaling, Default: 1 to 5 V)Less than 0.1 Ω More than 500 Ω (DC 1 to 5 V)
More than 1 kΩ (DC 0 to 10 V)29 Analog output DC 0 to 20 mA
(Available scaling, Default: 4 to 20 mA)More than 5 MΩ 0 to 600 Ω (DC 4 to 20 mA) BP BCD output (TTL level positive logic) - BN BCD output (TTL level negative logic) - DP BCD output (transistor output, source type) - DN BCD output (transistor output, sink type) - E0 RS-232C - E1 RS-485 - ③Data output 2 (Available- 09 and -29 of ④ Data output 1 only)
Code Data output Blank No output E0 RS-232C E1 RS-485 Measuring input
Thermocouple
Sensor Measuring range Display range Accuracy R 100.0 to 1700.0°C -50.0 to 1800°C ±(0.1% of rdg + 0.6digit) [100.0 to 500.0°C] ±(0.1% of rdg + 0.5digit) [500.0 to 1700.0°C] K -100.0 to 1300.0°C -200.0 to 1400.0°C ±(0.1% of rdg + 0.6digit) [-100.0 to 0.0°C] ±(0.1% of rdg + 0.5digit) [0.0 to 1300.0°C] E -130.0 to 1000.0°C -250.0 to 1050.0°C ±(0.1% of rdg + 0.5digit) J -140.0 to 1200.0°C -210.0 to 1250.0°C T -200.0 to 400.0°C -250.0 to 420.0°C B 600.0 to 1800.0°C -20.0 to 1820.0°C ±(0.1% of rdg + 0.6digit) N -100.0 to 1300.0°C -230.0 to 1350.0°C ±(0.1% of rdg + 0.5digit) Resistance thermobulb
Sensor Measuring range Display range Accuracy Pt100Ω
range [1]-200.0 to 850.0°C -200.0 to 870.0°C ±(0.1% of rdg + 0.2digit) [0.0 to 100.0°C] ±(0.2% of rdg + 0.3digit) [-200.0 to 0.0°C] [100.0 to 850.0°C] Pt100Ω
range [2]-150.00 to 150.00°C -180.00 to 180.00°C ±(0.1% of rdg + 0.2digit) [0.0 to 100.0°C] ±(0.2% of rdg + 0.3digit) [-150.0 to 0.0°C] [100.0 to 150.0°C] JPt100Ω -200.0 to 645.0°C -200.0 to 660.0°C ±(0.1% of rdg + 0.2digit) [0.0 to 100.0°C] ±(0.2% of rdg + 0.3digit) [-200.0 to 0.0°C] [100.0 to 645.0°C] Basic Specifications
Display 0 to 99999, red or green LED (character height 15.2 mm), “-” polarity, with zero-suppress function.
During the measuring mode, the display switches from current value to peak memory, bottom memory,
display amplitude, and current value, by pushing PB key.
Current value, PB 1 second, Memory, Peak memory, PM illuminates, Bottom memory, BM illuminates, Display amplitudeOver-range display Flashing with minimum or maximum value of display range Resolution RTD input: 0.1 °C (0.01°C when PT100Ω range 2) Thermocouple input 0.1 °C External resistance 500 Ω Max. for Thermocouple input Wire resistance 5 Ω Max. per wire for Thermocouple input Overload DC +/- 10 V Sampling rate Approx. 5 times / s Display cycle selectable from 200ms, 400ms, 1s, 2s, 4s, 5s Response within 2 samplings or within display cycle, whichever longer Input method Single ended, floating input A/D conversion ⊿-∑ conversion method Noise Rejection Normal mode (NMR) - More than 50 dB.
Common mode (CMR) - More than 110 dB.
Noise through power supply line - 1000 V (at AC voltage power supply)Insulation Resistance -DC 500 V, More than 100 MΩ Withstand Voltage Input terminals - External case: AC 1500 V each for 1min.
Power supply terminals - External case: AC 1500 V each for 1min.
Power supply terminals - Input and output terminals: AC 500 V each for 1min.
Input terminals - Output terminals: AC 500 V each for 1min.Power Supply AC 100 to 240V (90 to 250 V) 50/60 Hz, DC 12 to 24 V (9 to 32 V) Power Consumption 451B itself: Approx. 7 VA at 100 V AC, 9 VA at 200 V AC, 300 mA at 12 V. 150 mA at 24 V DC. Operating Temperature 0 to 50°C Storage Temperatur e -20 to 70°C Weight Approx. 300 g Housing protection IP65 for the front panel, IP20 for the rear case, IP00 for terminals Mounting Method Panel mount with the bracket
