JCMT Multivariable Transmitter with RS485
Multi variable pressure transmitter JCMT is suitable to measure liquid, gas, or steam flow and differential pressure. RP1005 outputs a 4~20mADC / Modbus RS485 / HART / Pulse signal corresponding to the measured flow or differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored.
- Introduction
- Parameters
- Model
- How to Order
- Video
JCMT Multivariable Transmitter with RS 485
The multi variable pressure transmitter JCMT is suitable to measure liquid, gas, or steam flow and differential pressure. JC1005 outputs a 4~20mADC / Modbus RS485 / Pulse signal corresponding to the measured flow or differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via different communications. Other key features include quick response, remote set-up using communications, selfdiagnostics and optional status output for pressure high/low alarm.
Technical Parameter for Multi variable pressure transmitterÂ
1Â PERFORMANCE SPECIFICATIONS
Reference Accuracy of Calibrated Span (includes terminal-based linearity, hysteresis, and repeatability)± 0.075%/± 0.01%
If TD>10 (TD=URL/SPAN): ±(0.0075×TD)%/ ±(0.01×TD)%
Ambient Temperature Effects
-20℃～65℃：±(0.15×TD+0.05)%×Span
Every 10℃ is ±0.08% ×Span (TD=1)
-40℃～-20℃ & 65℃～85℃：
±(0.2×TD+0.05)%×Span
Static Pressure Effects
±(0.05%URL+0.075%Span)/10MPa
Overpressure Effects: ±0.1%×Span /10MPa。
Stability: ±0.1%×Span /3 years
Power Supply Effects
±0.001% /10V (12～42V DC)
Measuring Temperature
-50℃～650℃
Zero Adjustment Limits
Zero can be fully elevated or suppressed, within the lower and upper range limits of the capsule.
External Zero Adjustment
External zero is continuously adjustable with 0.01% incremental resolution of span. Re-range can be done locally using the range setting switch.
Mounting Position Effects
Rotation in diaphragm plane has no effect. Tilting up to 90 degree will cause zero shift up to 0.4 kPa which can be corrected by the zero adjustment.
Output
Two wire 4~20mADC (Output range: 3.9 mA to 20.5Â mA.),
Modbus RS485, HART FSK protocol on 4~20mADC signal,  Pulse signal output .
Failure Alarm (the mode can be selected)
Low Mode (min): 3.7 mA
High Mode (max): 21 mA
No Mode (hold): Keep the effective value before the fault. Note: The standard setting of failure alarm is High
Mode.
Response Time
The amplifier damping constant is 0.1 sec; The sensor damping constant is 0.1~1.6 sec, it depends on the range and range compression ratio. Amplifier damping
time constant is adjustable from 0.1 to 60 sec by software and added to response time.
UpTime < 15s
Ambient Temperature Limits
-40 to 85°C
-20 to 65°C with LCD display or fluorine rubber sealing
Storage and Transportation Temperature Limits
-50 to 85°C; -40 to 85°C with LCD display
Working Pressure Limits (Silicone oil)
Maximum working pressure: 0.25MPa, 2MPa, 10MPa ,40MPa
Static Pressure Limits
3.5kPa abs. to maximum working pressure.
One-way Overload Pressure Limit
The maximum one-way overload pressure is maximum working pressure.
Electromagnetic Compatibility (EMC)
Look the EMC Performance Table
3 INSTALL
Supply & Load Requirements
24 V DC supply, R≤(Us-12V)/Imax kΩ, Imax=23 mA.
Maximum voltage limited: 42VDC, Minimum voltage limited: 12VDC, 15VDC（with LCD display） 230Ω to 600Ω for digital communication
Electrical Connection
The electrical connection is made via cable entry M20x1.5.The screw terminals are suitable for wire  cross-sections up to 2.5mm2.
Process4 PHYSICAL SPECIFICATIONS
Wetted Parts Materials
Sensor Body： 316L stainless steel
Isolating Diaphragm：316L stainless steel / Hastelloy
C/Gold plated on 316L/FEPÂ plated on 316L/Tantalum
Cover Flange： 316 stainless steel
Nuts and Bolts： 304 stainless steel
Process Connector： 316 stainless steel
Fill fluid： Silicone oil/Fluorinated oil
Process Connector Gasket：Perbunan（NBR）/Viton
（FKM）/Teflon(PTFE)
Amplifier Housing： Aluminum with epoxy resin coat
Housing Gasket： Perbunan（NBR）
Name plate and tag：304 stainless steel
Weight： 3.3kg
Degrees of Protection:Â IP67
Model selection
| Multi-variable Pressure Transmitter JCMT | ||
| Accuracy | ||
| B | Reference Accuracy±0.075% | |
| C | Reference Accuracy±0.1% | |
| Span | ||
| B | 0-200Pa～6kPa（0-20～600 mmH2O）/(0-2～60mbar) | |
| C | 0-1kPa～40kPa（0-100～4000 mmH2O）/(0-10～400mbar) | |
| D | 0-2.5kPa～250kPa（0-0.25～25 mH2O）/(0-25～2500mbar) | |
| F | 0-30kPa～3MPa（0-3～300 mH2O）/(0-0.3～30bar) | |
| Static pressure sensor | ||
| 1 | 0.25 MPa | |
| 2 | 2MPa | |
| 3 | 20MPa | |
| 4 | 40MPa | |
| Diaphragm fill fluid | ||
| A | 316L stainless steel Silicone oil | |
| B | 316L stainless steel Fluorinated oil | |
| C | Hastelloy C Silicone oil | |
| D | Hastelloy C Fluorinated oil | |
| E | Gold plated on 316L Silicone oil | |
| F | Gold plated on 316L Fluorinated oil | |
| G | FEP plated on 316L Silicone oil | |
| T | Tantalum Silicone oil | |
| Process connections | ||
| N | 7/16-20 UNF and 1/4-18 NPT female thread, No relief valve | |
| B | 7/16-20 UNF and 1/4-18 NPT female thread, Relief valves at end of flanges | |
| U | 7/16-20 UNF and 1/4-18 NPT female thread, Relief valves at the upper part of the flange side | |
| D | 7/16-20 UNF and 1/4-18 NPT female thread, Relief valve at the lower part of
the flange side |
|
| Process connector gasket | ||
| N | Perbunan（NBR） | |
| F | Viton (FKM) | |
| P | Teflon (PTFE) | |
| Special function | ||
| N | None | |
| O | Degrease cleansing treatment（Oxygen measurement must be
with fluorinated oil filled capsule, Viton (FKM) gasket, <6MPa ,<60℃) |
|
| P | Anti-lightning function | |
| Mounting bracket | ||
| N | None | |
| 1 | 304 stainless steel | |
| 2 | Carbon steel galvanized | |
| Process connector accessory | ||
| N | None | |
| 1 | Stainless steel oval-shaped flange with 1/2 NPTÂ Â female thread | |
| 2 | Stainless steel D-shaped connector with M20x1.5 male thread | |
| Integral indicator | ||
| N | None | |
| 1 | LCD display | |
| 2 | Backlit LCD display | |
| Configuration | ||
| N | None | |
| A | Configure by customer table | |
| Output | ||
| H | HART with 4~20mADC | |
| M | Modbus RS485 | |
| P | Pulse signal | |
How to order multi variable pressure transmitter JCMT
- Medium
- Range
- Working pressure
- Working temperature
- Static pressure
- Other requirement
Multi-variable pressure transmitter JCMT
