JER Economy Safety Light Curtain
The JER series is DAIDISIKE's economy safety light curtain — a slim 29.3 × 29.3 mm square aluminum body that drops straight into presses, robotic cells, packaging lines and end-of-arm tool guards without redesigning brackets.
- 4 beam-pitch options: 10 / 14 / 20 / 40 mm
- Response time ≤ 15 ms
- Protection class IP65, anti-ambient-light ≥ 10,000 Lux
- Protection height H = (N − 1) × K, covering 70 – 7,960 mm
- Standard infrared sync — no extra sync cable needed
Why Choose JER
Compact 29.3 mm body
Square aluminum profile fits tight machine frames where round or oversized curtains won't. Mounting brackets compatible with most legacy installations.
Cost-optimized BOM
Single-emitter design with infrared synchronization keeps wiring simple — two cables, plug-and-play, ideal for small-batch manufacturers.
Fast response, low latency
≤ 15 ms response covers most Type-2-equivalent applications: presses, shears, robotic loading and palletizers.
Wide pitch range
10 mm pitch protects fingers, 14 / 20 mm pitch protects hands, 40 mm pitch for body / perimeter sensing — one product family for the entire machine.
Strong light immunity
Modulated 940 nm infrared and tight optical filtering: stable under workshop lighting up to 10,000 Lux and direct sunlight reflections.
Plug & play output
NPN / PNP NO+NC outputs straight into PLC, relay or DAIDISIKE controller family — no extra interface module required.
Specification Selection Table
Model rule: JER{K}-{N}{H}NA | H = (N − 1) × K | L = P + H + J + 24
H is the protection height — the distance from the first beam to the last beam, which is what ISO 13855 uses when you calculate the minimum safety distance. It is one beam pitch less than the beam count multiplied by the pitch. L is the physical screen height including the dead zones and end caps.
K = 10 mm · minimum detectable object 18 mm · P = 5 mm (top dead zone) · J = 10 mm (bottom dead zone) · 12 mm end cap at each end · 97 models (8–200 beams, step 2)
| Model | Number of beams N | Protection height H (mm) | Screen height L (mm) |
|---|---|---|---|
| JER10-0870NA | 8 | 70 | 109 |
| JER10-1090NA | 10 | 90 | 129 |
| JER10-12110NA | 12 | 110 | 149 |
| JER10-14130NA | 14 | 130 | 169 |
| JER10-16150NA | 16 | 150 | 189 |
| JER10-18170NA | 18 | 170 | 209 |
| JER10-20190NA | 20 | 190 | 229 |
| JER10-22210NA | 22 | 210 | 249 |
| JER10-24230NA | 24 | 230 | 269 |
| JER10-26250NA | 26 | 250 | 289 |
| JER10-28270NA | 28 | 270 | 309 |
| JER10-30290NA | 30 | 290 | 329 |
| JER10-32310NA | 32 | 310 | 349 |
| JER10-34330NA | 34 | 330 | 369 |
| JER10-36350NA | 36 | 350 | 389 |
| JER10-38370NA | 38 | 370 | 409 |
| JER10-40390NA | 40 | 390 | 429 |
| JER10-42410NA | 42 | 410 | 449 |
| JER10-44430NA | 44 | 430 | 469 |
| JER10-46450NA | 46 | 450 | 489 |
| JER10-48470NA | 48 | 470 | 509 |
| JER10-50490NA | 50 | 490 | 529 |
| JER10-52510NA | 52 | 510 | 549 |
| JER10-54530NA | 54 | 530 | 569 |
| JER10-56550NA | 56 | 550 | 589 |
| JER10-58570NA | 58 | 570 | 609 |
| JER10-60590NA | 60 | 590 | 629 |
| JER10-62610NA | 62 | 610 | 649 |
| JER10-64630NA | 64 | 630 | 669 |
| JER10-66650NA | 66 | 650 | 689 |
| JER10-68670NA | 68 | 670 | 709 |
| JER10-70690NA | 70 | 690 | 729 |
| JER10-72710NA | 72 | 710 | 749 |
| JER10-74730NA | 74 | 730 | 769 |
| JER10-76750NA | 76 | 750 | 789 |
| JER10-78770NA | 78 | 770 | 809 |
| JER10-80790NA | 80 | 790 | 829 |
| JER10-82810NA | 82 | 810 | 849 |
| JER10-84830NA | 84 | 830 | 869 |
| JER10-86850NA | 86 | 850 | 889 |
| JER10-88870NA | 88 | 870 | 909 |
| JER10-90890NA | 90 | 890 | 929 |
| JER10-92910NA | 92 | 910 | 949 |
| JER10-94930NA | 94 | 930 | 969 |
| JER10-96950NA | 96 | 950 | 989 |
| JER10-98970NA | 98 | 970 | 1009 |
| JER10-100990NA | 100 | 990 | 1029 |
| JER10-1021010NA | 102 | 1010 | 1049 |
| JER10-1041030NA | 104 | 1030 | 1069 |
| JER10-1061050NA | 106 | 1050 | 1089 |
| JER10-1081070NA | 108 | 1070 | 1109 |
| JER10-1101090NA | 110 | 1090 | 1129 |
| JER10-1121110NA | 112 | 1110 | 1149 |
| JER10-1141130NA | 114 | 1130 | 1169 |
| JER10-1161150NA | 116 | 1150 | 1189 |
| JER10-1181170NA | 118 | 1170 | 1209 |
| JER10-1201190NA | 120 | 1190 | 1229 |
| JER10-1221210NA | 122 | 1210 | 1249 |
| JER10-1241230NA | 124 | 1230 | 1269 |
| JER10-1261250NA | 126 | 1250 | 1289 |
| JER10-1281270NA | 128 | 1270 | 1309 |
| JER10-1301290NA | 130 | 1290 | 1329 |
| JER10-1321310NA | 132 | 1310 | 1349 |
| JER10-1341330NA | 134 | 1330 | 1369 |
| JER10-1361350NA | 136 | 1350 | 1389 |
| JER10-1381370NA | 138 | 1370 | 1409 |
| JER10-1401390NA | 140 | 1390 | 1429 |
| JER10-1421410NA | 142 | 1410 | 1449 |
| JER10-1441430NA | 144 | 1430 | 1469 |
| JER10-1461450NA | 146 | 1450 | 1489 |
| JER10-1481470NA | 148 | 1470 | 1509 |
| JER10-1501490NA | 150 | 1490 | 1529 |
| JER10-1521510NA | 152 | 1510 | 1549 |
| JER10-1541530NA | 154 | 1530 | 1569 |
| JER10-1561550NA | 156 | 1550 | 1589 |
| JER10-1581570NA | 158 | 1570 | 1609 |
| JER10-1601590NA | 160 | 1590 | 1629 |
| JER10-1621610NA | 162 | 1610 | 1649 |
| JER10-1641630NA | 164 | 1630 | 1669 |
| JER10-1661650NA | 166 | 1650 | 1689 |
| JER10-1681670NA | 168 | 1670 | 1709 |
| JER10-1701690NA | 170 | 1690 | 1729 |
| JER10-1721710NA | 172 | 1710 | 1749 |
| JER10-1741730NA | 174 | 1730 | 1769 |
| JER10-1761750NA | 176 | 1750 | 1789 |
| JER10-1781770NA | 178 | 1770 | 1809 |
| JER10-1801790NA | 180 | 1790 | 1829 |
| JER10-1821810NA | 182 | 1810 | 1849 |
| JER10-1841830NA | 184 | 1830 | 1869 |
| JER10-1861850NA | 186 | 1850 | 1889 |
| JER10-1881870NA | 188 | 1870 | 1909 |
| JER10-1901890NA | 190 | 1890 | 1929 |
| JER10-1921910NA | 192 | 1910 | 1949 |
| JER10-1941930NA | 194 | 1930 | 1969 |
| JER10-1961950NA | 196 | 1950 | 1989 |
| JER10-1981970NA | 198 | 1970 | 2009 |
| JER10-2001990NA | 200 | 1990 | 2029 |
Part-number suffix: N = NPN output (NO/NC), P = PNP output (NO/NC); A = 0.3–3 m sensing range, B = 0.3–6 m. Example: JER20-10180NA = 20 mm pitch, 10 beams, 180 mm protection height, NPN, 0.3–3 m. Special builds up to 200 beams are available; tell us in advance if you need the 3–6 m detection distance.
Technical Parameters
| Curtain type | Through-beam (opposed mode), emitter + receiver pair |
|---|---|
| Model rule | JER{K}-{N}{H}NA — e.g. JER20-10180NA (20 mm pitch, 10 beams, 180 mm protection height, NPN, 0.3–3 m) |
| Beam pitch (K) | 10 / 14 / 20 / 40 mm |
| Minimum detectable object | 18 mm (K10) / 22 mm (K14) / 28 mm (K20) / 48 mm (K40) |
| Number of beams (N) | K10: 8–200 · K14: 6–200 · K20: 6–200 · K40: 4–200 (step 2) |
| Protection height (H) | H = (N − 1) × K → 70 – 7,960 mm (see selection table) |
| Detection distance | 0.3 – 3 m (suffix A) / 0.3 – 6 m (suffix B, state in advance) |
| Body cross-section | 29.3 × 29.3 mm × L |
| Response time | ≤ 15 ms |
| Light source | Modulated infrared LED (940 nm) |
| Ambient light immunity | 10,000 Lux (incidence angle ≥ 5°); incandescent 3,000 Lx / sunlight 10,000 Lx at the receiver |
| Power supply | DC 12 / 24 V; AC 110–220 V with relay-output controller |
| Current consumption | ≤ 200 mA |
| Output | NPN or PNP, NO + NC; sink current 500 mA, residual voltage < 1.5 V; polarity, short-circuit and overload protection |
| Output state | ON when all beams are clear (receiver indicator green) |
| Indicators | Emitter: power (red). Receiver: output green when clear, red when blocked |
| Synchronization | Optical sync — no sync cable between emitter and receiver |
| Connection | Circular aviation connector — 3-core emitter, 5-core receiver |
| Controller (optional) | DQCA / DQCA2 built-in controller |
| Protection class | IP65 |
| Operating temperature | −10 °C to +40 °C (non-freezing) |
| Storage temperature | −25 °C to +55 °C |
| Humidity | Operating 35 – 85 %RH · storage 35 – 95 %RH |
| Housing material | Aluminium alloy body, ABS-reinforced nylon end caps |
| Accessories | DQCA-01 / 02 / 03 mounting brackets, JER-08 top-and-bottom fixing kit (supplied as standard) |
Typical Applications
Frequently Asked Questions
What is the difference between JER and DQS?
JER is an economy series with a 29.3 mm slim body and ≤ 15 ms response, ideal for cost-sensitive press and packaging lines. DQS adds dual-channel OSSD and is designed to support PL e / Cat.4 safety chains (when integrated with a certified safety relay or safety PLC) for high-risk hydraulic and mechanical presses.
How do I calculate the total length L?
L = P + H + J + 24, where H = (N − 1) × K is the protection height, P and J are the top / bottom dead zones (they depend on K), and 24 mm covers the two 12 mm end caps.
Note the − 1: the protected zone runs from the first beam to the last beam, so a 4-beam curtain on a 40 mm pitch protects 120 mm, not 160 mm. Always use H — not the screen height L — when you calculate the ISO 13855 minimum safety distance, otherwise the guarded zone is smaller than your calculation assumes.
Is the JER suitable for outdoor installation?
JER offers IP65 protection — fine for damp factory floors and washdown areas, but for direct outdoor or rain exposure the DQR IP68 series is the better choice.
Can I get longer cables or M12 connectors?
Yes. Standard cable is 3 m flying-lead; M12 5-pin / 8-pin connector versions and cables up to 30 m are available on request.
Specs reviewed by Engineer Cai, Senior Application Engineer. See certificates.
Safety Light Curtain — Customer Cases
Real installations from DAIDISIKE clients. Click any case to view in full. Filter by scenario to quickly find a similar setup.