General Specifications

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1 General Specifications GS 77J04H0-0E Model MH Isolator (Free Range Type) General The MH is a plug-in type isolator that converts DC current or DC voltage signals into isolated DC current or DC voltage signals I/O range setting, selection of square root extractor and breakpoint linearization (breakpoint setting), I/O adjustment, I/O monitoring, and loop back test can be made using the optional Parameter Setting Tool (VJ77) or Handy Terminal (JHT00) The operation indicating lamp shows the operation status, abnormalities in a setting etc I/O adjustment can be made using the switches on the front panel of the MH without a setting tool such as Handy Terminal Model and Suffix Codes Model : output MH -0-0 / Power supply : -40V DC (Operating range: to 48 V) : V AC/DC (Operating range: 8 to 4 V) A: 0 to +0 ma DC (with 0 Ω receiving resistor) (Note) B: 0 to +0 ma DC (with 00 Ω receiving resistor) (Note) : 0 to +0 V DC : to + V DC Z: (Custom order) Customized current signals or voltage signals signal A: 0 to 0 ma DC Span is ma or more B: 0 to ma DC Span is ma or more : 0 to +0 V DC Span is 0 V or more : 00 to +00 mv DC Span is 0 mv or more Z: (Custom order) Customized current signals or voltage signals Breakpoint linearization 0: Not available : Available Optional specification /SN: Without socket /R00: With 00 Ω receiving resistor (Note) /R0: With 0 Ω receiving resistor (Note) Note: Specify /R00 or /R0 when using different receiving resistor from the receiving resistor specified in the input signal suffix code A or B Ordering Information Specify the following when ordering Model and suffix codes: eg MH-0-AA00 Input range: eg 4 to 0 ma DC range: eg 4 to 0 ma DC Specify a lowcut point when with square root extractor is required: eg Lowcut point 04% The isolator will be shipped with a lowcut point of 0% if no specification of lowcut point Specify breakpoints in Work Sheet when linearization is required The isolator will be shipped with a specified resistor if the input signal is current input and a receiving resistor of the optional specification is specified Input/ Specifications : DC current or DC voltage signal setting range: suffix code A B Setting range ±0 ma DC Span is ma or more ±0 ma DC Span is ma or more (± ma DC Span is ma or more for the optional specification /R0 ) ±0 V DC Span is V or more ± V DC Span is mv or more Input resistance: Current input: 0 Ω for the suffix code A 00 Ω for the suffix code B Note: A specified resistor is applied if a receiving resistor of the optional specification is specified Voltage input: MΩ for the suffix code (800 kω during power off) MΩ for the suffix code (0 kω during power off) Maximum allowable input: Current input: 40 ma DC or less for 0 Ω receiving resistor 70 ma DC or less for 00 Ω receiving resistor Voltage input: ± V DC or less GS 77J04H0-0E Copyright Jul 00 st Edition Jul 00

2 Square root extractor: ted against the result of extracting square root of input Y= X- (input 0 % value) (output span)+(output 0 % value) input span Lowcut point setting range: 0 to 00% of input, setting available by 0% notch characteristic: for lowcut point or less is cramped with straight line proportional to input signal (Y) 0 Y=X Hysteresis (approx 0% fixed) (X) Lowcut point signal: point of DC current or DC voltage signal signal setting range: signal suffix code Setting range A 0 to 0 ma DC Span is ma or more B 0 to ma DC Span is ma or more ±0 V DC Span is 0 V or more ±00 mv DC Span is 0 mv or more Allowable load resistance: Voltage output: kω or more for ± V DC 0 kω or more for ±0 V DC 0 kω or more for ±00 mv DC Current output: (V)/max output (A) (Ω) or less Linearization: Breakpoint: Up to points (Set a relationship between input and output with % value over the span) Allowable setting range of breakpoint: to +0% (both input and output) With 4 significant digits; can be set to the second place of a decimal point Set breakpoints according to the following For input: 0% X0 X X Xn Xn 00% For output: 0% Y0 to Yn 00% signal Yn Yn- Xn- Xn Adjustment range: Input adjustment: ±% of span or more (Zero/Span) adjustment: ±% of span or more (Zero/ Span) All Rights Reserved Copyright 00, Yokogawa Electric Corporation Standard Performance Accuracy rating: ±0% of span However, the accuracy is not guaranteed for output levels less than 0% of the span of a 0 to X ma output range type For square root extractor input, ±% of span when the input is % or less The accuracy is limited according to the input/output range settings Accuracy Calculation Accuracy = Input accuracy + accuracy (%) Accuracy is obtained by totalizing the expression () for input accuracy and the expression () for output accuracy However, ±00% is applied if a value obtained from the expression () or () is less than ±00% For current input, add the error of receiving resistor ±0% to the input accuracy Input accuracy = ±00% a/b expression () suffix code A * B * Input range (Range converted into voltage) ± V DC Outside of ± V DC and within ±0 V DC ±0 mv DC Outside of ±0 mv DC and within ±00 mv DC Outside of ±00 mv DC and within ±0 V DC Outside of ±0 V DC and within ± V DC Accuracy calculation condition (V) 4(V) 0(mV) 40(mV) 0(V) 08(V) Input span (Span converted into voltage) *: When input signal is current, the values converted into voltage by the receiving resistor are applied to the input range and input span accuracy = ±00% a/b expression () signal suffix code A B range 0 to 0 ma DC 0 to ma DC ± V DC Outside of ± V DC and within ±0 V DC ± mv DC Outside of ± mv DC and within ±00 mv DC GS 77J04H0-0E st Edition Jul9, a 0(mA) (ma) (V) 4(V) 0(mV) 40(mV) b Accuracy calculation condition a b span If or more is set for the line segment gain of linearization, multiply the input/output accuracy by the value of line segment gain Line segment gain (slope) is the maximum value calculated from the following expression Line segment gain = Yn Yn- Xn Xn- Response speed: 0 ms, % response (0 to 90%) Effect of power supply voltage fluctuations: ±0% of span or less for the fluctuation within the operating range of each power supply voltage specification Effect of ambient temperature change: ±0% of span or less for a temperature change of 0 C

3 Power Supply and Isolation Power supply rated voltage: -40 V DC or V AC/DC 0/0 Hz Power supply input voltage: -40 V DC (±0%) or V AC/DC (, +0%) 0/0 Hz Power consumption: 4 V DC 7 W, 0 V DC W 00 V AC VA, 00 V AC 49 VA Insulation resistance: 00 MΩ at 00 V DC between input, output, power supply, and grounding terminals mutually Withstand voltage: 000 V AC for minute between input, output, power supply and grounding terminals mutually Environmental Conditions Operating temperature range: 0 to 0 C Operating humidity range: to 90% RH (no condensation) Operating conditions: Avoid installation in such environments as corrosive gas like sulfide hydrogen, dust, sea breeze and direct sunlight Installation altitude: 000 m or less above sea level Mounting and Dimensions Construction: Plug-in type Material: Main unit : ABS resin (black), UL94 V-0 ABS resin + polycarbonate resin (black), UL94 V-0 PBT resin, including glass fiber (black), UL94 V-0 Socket: Modified polyphenylene oxide resin, including glass fiber (black), UL94 V- Mounting: Wall or DIN rail mounting Connection: M screw terminals External dimensions: 8 (H) (W) (D) mm Weight: (including a socket) Main unit: approx 00 g Socket: approx 0 g Accessories Spacer: One (for DIN rail mounting) Range label: One Receiving resistor: One (for current input) Front Panel Input/output can be adjusted using the selection switch and adjustment switch Connector for communication Selection switch Adjustment switch Position of selection switch 0 Operation indicating lamp: Turns on at power on Item to be adjusted No function zero adjustment span adjustment Input zero adjustment Input span adjustment Terminal Assignments OUTPUT OUTPUT INPUT INPUT NC GND SUPPLY SUPPLY (+) ( ) (+) ( ) (GND) (L+) (N ) All Rights Reserved Copyright 00, Yokogawa Electric Corporation GS 77J04H0-0E st Edition Jul9, 00-00

4 4 Block Diagrams Operation indicating lamp Handy Terminal or PC Input Selection switch Adjustment switch + R 4 R: External receiving resistor for current input Low drift input processing Microprocessor Computation I/O adjustment Insulation Power supply + L+ 7 Supply N 8 GND External Dimensions Unit: mm () Receiving resistor * (for current input ) Main unit (8) Main unit fixing stopper (upper, lower) - 4 mounting holes (depth: ) Socket (4) 8 8 DIN rail 8-M 7 screws *: 0 or 00 is attached for current input 0 0 () 78 max <Mounting Dimensions> or more or more - 4 or -M Note: When mounting the units close together, leave a space of at least mm between them Use the supplied spacer to keep a space of mm for DIN rail mounting All Rights Reserved Copyright 00, Yokogawa Electric Corporation GS 77J04H0-0E st Edition Jul9, 00-00

5 Work Sheet Model and Suffix Codes Number of breakpoints Write at least points for input and output breakpoints data Input (%) (%) Input (%) (%) X0 Y0 X Y X Y X7 Y7 X Y X8 Y8 X Y X9 Y9 X4 Y4 X0 Y0 X Y X Y X Y X Y X7 Y7 X Y X8 Y8 X4 Y4 X9 Y9 X Y X0 Y0 X Y X Y X7 Y7 X Y X8 Y8 X Y X9 Y9 X4 Y4 X0 Y0 X Y X Y (Specification conditions) Input conditions: 0% X0 X X Xn Xn 00% conditions: 0% (Y0 to Yn) 00% The information covered in this document is subject to change without notice for reasons of improvements in quality and/or performance All Rights Reserved Copyright 00, Yokogawa Electric Corporation GS 77J04H0-0E st Edition Jul9, 00-00

General Specifications

General Specifications GS J0X-0E Model MXT Universal Computing Unit (-input, Isolated -output Type) General This plug-in type universal computing unit receives DC current or DC voltage signals, applies