Slim Digital Pressure Sensor E8CB/ CSM_E8CB DS_E 1 with Built-in Microcomputer and Digital Display Withstands a of 9 kpa and highly reliable. Incorporates a two-turn adjuster ensuring easy setting. Be sure to read Safety Precautions on page 5. Ordering Information Digital display Pressure range ON/OFF output Linear output Model No Positive to 1 kpa E8CB-1C Negative to 1 kpa E8CB-CNCB Positive to 98 kpa NPN open collector 1 to 5 V -A1C Yes Negative to 11 kpa -ANC Positive to 98 kpa -B1C 1
Ratings and Specifications E8CB/ Item Model E8CB-1C E8CB-CNCB* -A1C -ANC* -B1C Power supply voltage 1 to VDC ±1% with a ripple (p-p) of 5% max. Current consumption ma max. ma max. Pressure type Gauge Permissible range to 1 kpa to 1 kpa to 98 kpa to 11 kpa to 98 kpa Pressure setting range to 1 kpa to 1 kpa to 98 kpa to 11 kpa to 98 kpa Pressure indication unit --- kpa Withstand 9 kpa 1.5 MPa Applicable material Noncorrosive and nonflammable gases Repeat accuracy (ON/OFF output) ±1% FS max. Accuracy (linear output) ±% FS max. Differential travel (ON/OFF output) % FS max. Linearity (linear output) ±1% FS max. Response time 5 ms max. Linear output 1 to 5 V with an output impedance of Ω and a permissible resistive load of 1 kω min. ON/OFF output NPN open collector Load current 8 ma max. Output applied voltage VDC max. Residual voltage 1 V max. (with a load current of 8 ma) and. V max. (with a load current of ma) Protection circuits Reversed power supply connection and load short-circuiting Display (See note.) Operation indicator (red) 1 /-digit LCD, operation indicator (red) Display accuracy --- ±% FS ±1 digit max. (within a temperature range between C and 5 C) ±% FS ±1 digit max. (within a temperature range between 5 C and 55 C) ±5% FS ±1 digit max. (within a temperature range between 1 C and C) Ambient temperature Operating: 1 C to 55 C (with no icing) Storage: C to 7 C (with no icing) Ambient humidity Operating/Storage: 5% to 95% (with no condensation) Temperature influence ±.1% FS/ C between C and 5 C and ±.% FS/ C max. between 1 C and C or 5 C and 55 C Voltage influence ±1.5% FS max. Insulation resistance 5 MΩ min. (at 5 VDC) between current carrying parts and case Dielectric strength 1, VAC for 1 min Vibration resistance (destruction) 1 to 5 Hz, 1.5-mm double amplitude or 1 m/s for hours each in X, Y, and Z directions Shock resistance (destruction) 1, m/s times each in X, Y, and Z directions Degree of protection IEC 659 IP5 Pressure inlet R(PT)1/8, and M5 female screw Connection method Pre-wired (Standard cable length: m) Weight (packed state) Approx. 7 g Approx. 8 g Material Pressure port Aluminum Accessories Instruction manual Instruction manual, DIN track mounting bracket Note: An example of a 1 /-digit display is shown below. Rated range Digital display rd digit nd digit 1st digit to 98 kpa 9 8 Positive to 98 kpa 9 8 Negative to 11 kpa --- 1 1 Note: The display values shown above are for when the maximum rated is applied. * These models are negative- models.
Engineering Data (Typical) E8CB/ Linear Output Fluctuation vs. Temperature E8CB-1C -A1C +1 +1 1 ( 1) (5) (55) 6 1 ( 1) (5) (55) 6 Linear Output Voltage vs. Pressure E8CB-1C Linear output voltage (V) 6 5 -A1C Linear output voltage (V) 6 5 1 1 6 8 1 Operating Pressure vs. Temperature E8CB-1C 19.6 9. 58.8 78. 98 -A1C Operating fluctuation (% FS) +1 Operating fluctuation (% FS) +1 1 ( 1) (5) (55) 6 1 ( 1) (55) 6
E8CB/ Linearity E8CB-1C -A1C Linearity deviation (%FS) +1. +.5 Linearity deviation (%FS) +1. +.5.5.5 1. 5 5 75 1 Operating Pressure Fluctuation vs. Voltage E8CB-1C -ANC 1..5 9 7.5 98 Operating fluctuation (% FS).8.6.... Operating fluctuation (% FS).8.6.....6.6.8 1.8 1 1. 1.6 6. Linear Output Fluctuation vs. Voltage E8CB-1C.8 1.8 1 1. 1.6 6. -ANC.8.6....8.6......6.6.8 1.8 1 1. 1.6 6..8 1.8 1 1. 1.6 6.
I/O Circuit Diagrams E8CB/ NPN Output Model Timing Charts Output Circuits E8CB-1C -A1C -B1C E8CB-CNCB -ANC Safety Precautions 98, 1, 98 Pressure (kpa) Setting ON Output OFF Lit Indicator Not Lit Pressure (kpa) Setting 11, 1 ON Output OFF Lit Indicator Not Lit Operation indicator (red) Pressure Sensor main circuit Brown Load White (ON/OFF) Black (linear output) Blue Load +V V WARNING This product is not designed or rated for ensuring safety of persons. Do not use it for such purposes. Precautions for Correct Use Do not use the product in atmospheres or environments that exceed product ratings. Mounting Diaphragm If the diaphragm is damaged, the Pressure Sensor will not operate properly. Do not insert a screwdriver or steel wire into the interior of the -sensitive parts through the inlet. Mounting The inlet has an R (PT)1/8 taper screw and an M5 female screw. Apply sealing tape around a screw that conforms to JIS Standards so that no leakage will occur. Do not apply a tightening torque higher than.9 N m. If the Pressure Sensor is directly connected to a conduit, be sure to apply a wrench to the inlet. Do not apply the wrench to the plastic case. DIN Track Mounting Bracket () Mounting 1. Fit the front part onto the bracket.. Press the rear part onto the bracket. Removing. Apply a flat-blade screwdriver to the rear hook. Then the Pressure Sensor can be removed with ease. 1 DIN track mounting bracket Wiring If no linear output is used, cut off the black lead wire and apply insulation tape to the lead wire so that it will not come in contact with any other terminal. Pressure port 5
E8CB/ Adjustment Setting the Pressure on the 1. Set the mode selector to.. Set the mode selector to. The has, however, normal output in. Turn the adjuster to the desired. mode. Change in setting is possible in mode by turning the adjuster. Do not turn the adjuster after the adjuster has been set to the de- Screwdriver sired. 76 Indications Permissible range Display Mode Operating status Description Positive -A1C -B1C Negative -ANC Normal Displays the imposed within the permissible range. (for kpa) Normal Displays the ON-point setting within the permissible range imposition Positive Pressure: Indicates that the imposed is lower than the permissible range. Negative Pressure: Indicates that the imposed is higher than the permissible range. The is, however, in normal output operation in both cases. to 11 kpa setting Positive Pressure: Indicates that ON-point setting value is lower than the permissible range. Negative Pressure: Indicates that ON-point setting is higher than the permissible range. The is, however, in normal output operation in both cases. to 98 kpa to 98 kpa imposition Indicates that the imposed is higher than the permissible range. --- setting Positive Pressure: Indicates that ON-point setting value is higher than the permissible range. Negative Pressure: Indicates that ON-point setting is lower than the permissible range. The is, however, in normal output operation in both cases. to 11 kpa Load overcurrent Indicates that the output transistor has excessive load current, in which case, the output of the is turned OFF and this display flashes until the condition returns to normal. Check the output wiring if this display flashes. Element destruction Indicates that the Pressure Sensor element is damaged due to the imposition of excessive or other reasons, in which case, the output of the is turned OFF. If this display appears, the can no longer be used. 6
E8CB/ Dimensions (Unit: mm) E8CB Operation indicator (red) 6.6 7. Pressure adjuster 5.5.5.75 8.5 Two, M mounting holes R (PT) 1/8 6.8 5 1.5 () -dia. vinyl-insulated round cable with conductor, (Conductor cross-section:. mm, Insulator diameter: 1.1 mm); Standard length: m 19 15 M5 (depth: 7.5) Operation indicator (red) 51. 6.1.6 1.9.6 9 Display 17 Pressure adjuster Display mode selector 67 55.75 8.5 Two, M mounting holes R (PT)1/8 9.5 8 11. 56. () 15 -dia. vinyl-insulated round cable with conductors, (Conductor cross-section:. mm, Insulator diameter: 1.1 mm); Standard length: m 19 1.5 M5 (depth: 7.5) Mounted to a DIN Track Mounting Bracket 67 55.75 8.5 Two, M mounting holes R (PT) 1/8 5.5 9.5 8 11. 19 () 56. 6 DIN track mounting 18 1.5 15 M5 (depth: 7.5).6 In the interest of product improvement, specifications are subject to change without notice. 7